With incomplete dominance, a likely ratio resulting from a monohybrid cross would be 1:2:1.
A monohybrid cross is a cross between two homozygous individuals, which produces the contrary phenotype for a particular genetic characteristic. A monohybrid cross is a cross between two organisms of P generation (parental generation) that differ from each other in a single specific characteristic. The organisms of the P generation are homogenous for the specified characteristic. However, the alleles for that specific trait vary between each parent. Based on chance, the potential genetic results of a monohybrid cross can be predicted using a Punnett square. A dihybrid cross, or genetic cross between parents that differ in two features, can also be subjected to this kind of genetic study.
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Stimulants have the capability to reduce functional activity of the nervous system.
a. true
b. false
Correct answer is B. False, Stimulants are unable to decrease the nervous system's functional activity.
How do stimulants work?A group of psychotropic substances known as stimulants raises brain activity. These substances can transiently improve mood, consciousness, and alertness. Many people utilize legal stimulant medications. Many stimulants have an addictive potential. Although there are many similarities across stimulants, they all have different characteristics and modes of action.
Stimulants at therapeutic doses, such those given to ADHD patients, boost vitality, sociability, libido, and mood-elevating potential. However, according to the Yerkes-Dodson Law, stimulants taken in greater dosages may actually make it harder to concentrate. Stimulants may also result in exhilaration, vitality, and a reduced desire for sleep when taken in greater amounts. Many stimulants, but not all of them, have ergogenic effects.
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FALSE, Stimulants don't have the capability to reduce functional activity of the nervous system.
What are Stimulants?
Stimulants are a category of psychoactive drugs that increases activity in the brain. These drugs can temporarily elevate alertness, mood, and awareness. Some stimulant drugs are legal and widely used. Many stimulants also can be addicting.
Stimulants share many commonalities, but each has unique properties and mechanisms of action.
Does stimulant cause heart attacks?
But increasingly, stimulants are being prescribed to older adults. New research suggests they'll cause a short-term spike in the risk of heart attacks, strokes, and cardiac rhythm disorders (arrhythmias).
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The most noticeable difference between human brains and other mammalian brains is the size of the:______
The most noticeable difference between human brains and other mammalian brains is the size of the Association areas
What is brain ?The brain is a sophisticated organ that manages every bodily function as well as thought, memory, emotion, touch, motor skills, vision, respiration, temperature, and hunger. The central nervous system, or CNS, is made up of the spinal cord that emerges from the brain.
The frontal, parietal, temporal, and occipital lobes are the traditional divisions for each hemisphere.The ultimate achievement of biological evolution, the human brain serves as the control centre for the nervous system and facilitates ideas, memory, movement, and emotions through a complicated function.Learn more about Brain here:
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List and briefly describe the three processes that lead to variation in offspring with the same parents.
The answer to the question is-
a. Non-sister homologous chromosomal crossover happens in prophase I. New gene combinations are created as a result of DNA segment exchanges between maternally derived and paternally derived chromosomes.
b. Gametes with a mixture of maternal and paternal chromosomes are produced as a result of random alignment during metaphase I.
c. Fertilization is unpredictable since any two gametes can mate.
What are gametes?In sexually reproducing species, the haploid cell known as a gamete is fused with another haploid cell during fertilization. The reproductive or sex cells of an organism are known as gametes. A female is any individual that generates the larger kind of gamete, known as an ovum, and a male is any individual that produces the smaller type, known as a sperm, in species where each individual produces just one type of gamete.
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Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear _____.
Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear in purple-colored structures due to the peptidoglycan cell wall.
What are gram-positive bacteria?Gram-positive bacteria are microorganisms (bacteria) that may be colored with crystal violet stain due to the presence of a peptidoglycan-based cell wall.
In conclusion, under a microscope, gram-positive bacteria (when dyed with the gram stain) appear purple-colored structures due to the peptidoglycan cell wall.
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Peaceful children elicit warmth from others whereas argumentative children provoke hostility from others. these experiences demonstrate ______________ genetic-environment relations.
Evocative
Peaceful children elicit warmth from others whereas argumentative children provoke hostility from others. these experiences demonstrate evocative genetic-environment relations.
What is evocative genetic-environment relations?Genotype-environment correlations known as evocative (or reactive) describe the relationship between a person's genetically determined behavior and other people's responses to that behavior.What connection exists between genes and the environment?According to science, how genes and environment interact affects how people develop. Research dispels the myth that genes are "cast in stone," demonstrating that early experiences can affect which genes are expressed, how they are expressed, and even whether they are expressed at all.Why is it crucial that genes and environments interact?In order to increase accuracy and precision in the evaluation of both genetic and environmental factors, it is crucial to examine how genes and the environment interact. Public health benefits from understanding gene-environment interactions are significant.To learn more about genetic-environment relation visit:
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Who discoverd the concept of density?
Answer: Archimedes
Explanation:
Calculation of the amount of oxygen entering the blood per breath after running
12 breaths are taken on average each minute. The volume of air inhaled with each typical breath is known as tidal volume (TV).
Your body needs more oxygen and creates more carbon dioxide while you exercise because your muscles are working harder. Your breathing must rise from about 15 times per minute (12 liters of air) at rest to between 40 and 60 times per minute (100 liters of air) during exercise in order to meet this additional demand.Additionally, your circulation quickens to ensure that the muscles have enough oxygen to continue working.The heart and lungs, two of the body's major organs, work hard while you exercise. The lungs both supply the body with oxygen, which gives you energy, and eliminate carbon dioxide, which is a waste product produced when you make energy.Therefore, breathing rate increases after exercise.
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Blo 182 in assignments the artificial selection of which organisms was useful for darwin to come up the term natural selection?
When Darwin returned to England aboard the HMS Beagle after his voyage to the Galapagos Islands, he used artificial selection to help gather data to justify his theory of evolution. After studying the finches on the islands, Darwin moved to raising birds, notably pigeons, back home to test his theories.
What, according to Darwin, is artificial selection?Artificial selection is the discovery of desirable qualities in plants and animals by humans, as well as the procedures taken to improve and maintain such traits in future generations.
They may adjust an organism's properties by choosing which creatures were permitted to reproduce. . Darwin referred to this form of alteration in organisms as artificial selection.
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oxygen is a product or reactant of repiration?
Answer:
reactant
Explanation:
One function of the skeleton is to store calcium and phosphate to help maintain balance. True or false?.
It is true. One function of the skeleton is to store calcium and phosphate to help maintain electrolyte balance.
Apart from providing strength and shape to the body, the bones and muscles that make up the skeleton also store minerals.
The bone tissues of the skeleton act as reservoirs for different minerals which are essential for the functions of the body such as phosphate and calcium.
These minerals are released into the bloodstream whenever required to maintain the electrolyte balance (moving minerals when the balance is too high or too low).
Moreover, the bones of the skeleton also serve as the sites of fat storage and production of blood cells.
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Actionable information about malicious actors as well as their tools, infrastructure, and methods is called _______________.
Actionable information about malicious actors as well as their tools, infrastructure, and methods is referred to as a script kiddie.
What is Script kiddie?This is refers ti a individual who is unskilled and uses tools and infrastructures which are developed by others to attack computer systems and networks.
These tools include different types of scripts and programs and they are also used in attacking websites so as to obtain vital and valuable information needed for various purposes. This individual is usually relatively inexperienced in this sort of dealings which is why he/she is referred to as a script kiddie.
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Turning up the temperature setting in a room that feels cold and causes a heater to turn on, is an example of the principle of?
Turning up the temperature setting in a room that feels cold and causing a heater to turn on, is an example of the principle of negative feedback.
What is Negative feedback?Negative feedback may be defined as a self-regulatory process that involves the partial or complete inhibition of the substance that activates it. In a more simple sense, when the product of a reaction leads to a decrease in that reaction.
The regulation of activation of a heater with respect to the reduction in the temperature of the room demonstrates an example of a negative feedback loop.
This is because the reduction in the temperature stimulates the function of the heater which later increases the temperature of the room.
Therefore, a negative feedback loop is an example of turning up the temperature setting in a room that feels cold and causing a heater to turn on.
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If you made a change in the promoter sequence in the dna, what would happen at the rna level?.
If you made a change in the promoter sequence in the DNA, the RNA would not be made.
Transcription can be defined as a process through which mRNA transcripts are made from the DNA. These mRNA transcripts form the proteins by translation.
For the transcription to start, an RNA polymerase recognizes and binds to a specific site known as the promoter sequence for a particular DNA segment. Other than the RNA polymerase, transcription factors that are necessary for transcription also recognize and bind to this site.
If a change in the promoter sequence is made, then the RNA polymerase will not be able to recognize and bind the promoter sequence. As a result, transcription will not initiate. Hence, no mRNA will be formed.
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The perception of food by visual or taste senses causes the liberation of one hormone in the stomach, which one is that hormone?
The perception of food by visual or taste senses causes the liberation of one hormone in the stomach, which is gastrin hormone.
Hormones are the chemical messengers that are release by an organ or gland and their site if action is some other part of the body. Hormones regulate several processes of the body like regulating the physiological processes or maintaining homeostasis.
Gastrin hormone is secreted by the G-cells present in the lining of the stomach. It stimulates the stomach to secrete more of hydrochloric acid. It also promotes the growth of mucosa is the stomach. Gastrin is also known for regulating blood pressure.
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Which of the following statements is correct?
Ribosomes are the largest organelles in a cell
Ribosomes are surrounded by a membrane
Ribosomes are the powerhouse of the cell
Ribosomes are found both in prokaryotic and eukaryotic cells
Answer: D Ribosomes are found both in prokaryotic and eukaryotic cells
Explanation:
Answer:
d) Ribosomes are found both in prokaryotic and eukaryotic cells
Explanation:
I did the k12 test and got a 100.
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If you lift a heavy weight and hold it in your arms, close to your body, how would the bone matrix in the femur be affected?.
Answer:
The lateral sides of the diaphysis would stretch.
Explanation:
Describe the femur.
A femur is just the bone in the thigh. That is the longest and sturdiest bone in the human body. The capacity to stand + walk depends on it. Numerous crucial muscles, ligaments, tendons, other components of the circulatory system are supported by the femur as well.
How bad is a fractured femur?
A fractured femur is a dangerous injury that has to be treated immediately by a doctor. Treatment for broken femurs includes surgery plus physical therapy. The broken femur may need several months to recover. A vehicle accident, a tumble, or even being shot all have the potential to fracture the femur. The majority of femoral fractures recover fully in around four to six months, however one should be capable of returning to most movements before then.
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List and briefly describe the three processes that lead to variation in offspring with the same parents.
Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents are the three main sources of genetic variation arising from sexual reproduction.
What is genetic variation?Genetic variation is the variance in DNA sequences among members of a population. Germ cells, such as sperm and eggs, as well as somatic (all other) cells, are subject to variation. The only variation that develops in germ cells may be passed from one person to the next and ultimately have an impact on population dynamics and evolution. Major causes of variation include recombination and mutation.
Genetic variety first appeared as a result of mutations. A mutation is a type of DNA sequence change that is irreversible.Another important source of genetic diversity is recombination. Each of us is made up of a combination of our parents' genetic material.Therefore, variations arising from sexual reproduction are Crossing over (in prophase I) Random assortment of chromosomes (in metaphase I) Random fusion of gametes from different parents.
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Substances or mixtures of substances known as buffers, act in living things to resist changes in ______. multiple choice question.
Answer:
pH
Explanation:
Substances can act as a buffer to resist changes in pH when something more acidic or basic is added
Substances or mixtures of substances known as buffers, act in living things to resist changes in pH.
What are the uses of pH?pH is an important quantity that reflects the chemical conditions of a solution. The pH can control the availability of nutrients, biological functions, microbial activity, and the behavior of chemicals.
If the pH of their body or their environment fluctuates too much the organism can die. This is particularly true for human beings. For example, blood is normally slightly basic, with a pH range of 7.35 to 7.45.
Different organs function at their optimal level of pH. For example, the enzyme pepsin requires low pH to act and break down food, while the enzymes in intestine require high pH or alkaline environment to function.
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In eukaryotes, a molecule of genetic material and its associated proteins form a(n):_______
Humans have 46 chromosomes in each cell, which are made up of a genetic material molecule and the proteins that go along with it in eukaryotes.
What are the characteristics of eukaryotes?The following are the characteristics of eukaryotic cells: The nuclear membrane encloses the nucleus in eukaryotic cells. the mitochondria of the cell. Flagella and cilia are the locomotory structures found in eukaryotic cells.
Eukaryotic creatures' cells exhibit a number of distinctive traits. Eukaryotic cells are distinguished primarily by the existence of a nucleus that is encircled by a delicate nuclear membrane. Additionally, the presence of membrane-bound organelles in the cytoplasm is a characteristic of eukaryotic cells.
The cytoskeleton, an internal network that promotes intracellular component trafficking and aids in maintaining cell shape, holds organelles like mitochondria, the endoplasmic reticulum (ER), Golgi apparatus, lysosomes, and peroxisomes in place.
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The recessive alleles do not contribute to the red coloration of the seed casing. True or false
The statement "the recessive alleles do not contribute to the red coloration of the seed casing" is definitely true.
What are Recessive alleles?Recessive alleles may be defined as a type of alternate form of a gene that must be homozygous when inherited in order to be expressed in the phenotype.
In a more simple sense, a recessive allele may be characterized as a type of allele that when present on its own will not affect the individual.
The red coloration of the seed casing is determined by the effect of dominant alleles while the green coloration of the seed casing is influenced by the effect of recessive alleles.
Therefore, the statement "the recessive alleles do not contribute to the red coloration of the seed casing" is definitely true.
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Which body fluid compartment contains high levels of k , large anions, and proteins?
Intracellular fluid contains high levels of k , large anions, and proteins.
What is Intracellular fluid?Fluids are bathed inside and outside of human cells. In actuality, the water that is present inside each cell accounts for 42% of the body's weight. Intracellular fluid is the term for the fluid found inside cells (ICF). Extracellular fluid (ECF), which refers to all fluid present outside of the cell, is distinguished from intracellular fluid by the semipermeable membrane that encloses it. This membrane permits fluid to pass through and leave while blocking the entry of undesirable chemicals or components. Water, proteins, and dissolved solutes are all present in intracellular fluid. The solutes are electrolytes, which support the healthy operation of our body. An element or substance that separates into ions when dissolved in fluid is known as an electrolyte.Learn more about the Intracellular fluid with the help of the given link:
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Stabilization of the unique coiled structure of an alpha helix in a protein is mostly attributed to.
Answer: Hydrogen bond from the carbonyl oxygen of one amino acid to the amino group of second amino acid.
Explanation:
For adequate function, cells must have an adequate supply of oxygen, glucose, and?
For adequate function, cells must have an adequate supply of oxygen, glucose, and water.
Each cell in the body requires adenosine triphosphate as an energy source. Cells require oxygen in order to carry out the process of cellular respiration. Through this process, glucose and oxygen are broken down to release energy in the form of ATP.
Cells also require water for adequate functioning. Water plays an important role in many of the major functions of the body. It is due to water that a cell has the potential to transport materials into and out of a cell.
Almost all of the chemical reactions that occur in the body require water. Water is also required for the excretion of waste from the body in the form of urine. Water also plays a major role in temperature regulation of the body.
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Which disorder places a pregnant woman at a higher risk of an amniotic fluid embolism?
Abruptio placentae places a pregnant woman at a higher risk of an amniotic fluid embolism.
Placental abruption (Abruptio placentae): What is it?Abruptio placentae, a rare but deadly pregnancy condition, is the rupture of the placenta. Throughout pregnancy, the placenta grows within the uterus. It adheres to the uterine wall and feeds and oxygenates the developing fetus.Placental abruption, which occurs prior to delivery, is when the placenta partially or completely separates from the inner wall of the uterus. This could cause the mother to have significant bleeding as well as decrease or impede the baby's intake of nutrients and oxygen. Placental abruption frequently occurs in an instant. Both the mother and the child are in danger if it is not handled.Learn more about the Placental abruption with the help of the given link:
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A post office receives lots of incoming mail, organizes it, and then sends it out to various locations. which part of the brain is a lot like a post office?
The thalamus is the part of the brain that is a lot like a post office.
What is the thalamus?Thalamus may be defined as an egg-shaped structure in the middle part of your brain. The thalamus is significantly composed of numerous nuclei that each function in a unique role ranging from relaying sensory and motor signals, as well as, regulating consciousness and alertness.
Due to high and lot of nerve and electrical impulses throughout the involves this important region or part of the brain. It creates heavy traffic in this area.
Due to receiving lots of incoming signals, organizing them, and then sending them out to various locations of the body, this part of the brain is known as the post office.
Therefore, the thalamus is the part of the brain that is a lot like a post office.
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What is the process of determining yardage by comparing the relationship between a distant animal and your fingers or a part of your bow?.
Subtending is determining yardage by comparing the relationship between a distant animal and your fingers or a part of your bow.
What is the best distance for shooting an animal with a bow?Any bow can be hazardous at any range, so care should be used when using one. Shots are often confined to 40 yards or fewer, and at this distance, an arrow can pass through an animal and penetrate another object. Most shots are fired from 15 yards out to assure precision.
What do we mean by subtended?A right angle subtends the opposite of a hypotenuse and runs from one side to the other. the angle subtended at the eye by an object of given width and a fixed distance away in order to fix the angular extent with respect to a fixed point or object considered as the vertex of a central angle subtended by an arc.
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PLEASE HELP!
Do you get any energy from the cellulose in the uncooked vegetables you eat? Why/why not?
Answer:
No, we don't get any energy from the cellulose in the uncooked vegetables you eat.
Explanation:
Cellulose contains just as much energy as starch because both molecules consist of glucose subunits. It is only possible to use that energy by burning or cooking and other cellulose materials.
During the __________ the virus is idle. select one:
a. dormant phase
b. propagation phase
c. triggering phase
d. execution phase
During the dormant phase the virus is idle.
A virus is a small, contagious organism that can only grow inside of living cells.
What are viruses?A virus is an infectious submicroscopic creature that only reproduces inside of live cells.All living things, including plants, animals, and microbes like bacteria and archaea, are susceptible to virus infection.Since they are difficult to classify as living creatures, viruses are referred to as Agents.Because they produce a variety of diseases that are often exceedingly challenging to control and cure, viruses—which are made of DNA and RNA—can be thought of as agents.Viruses don't exhibit the traits of living things; they are cellless and don't fall under the category of bacteria because they exclusively multiply inside the body, whereas bacteria do so everywhere.To learn more about Viruses, refer to the following link:
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What is the molecular weight of a protein in kilo dalton, that is made up of five amino acids?
The molecular weight of a protein in kilo dalton, that is made up of five amino acids is 5,000 grams per mole.
What is protein?
Protein is defined as the large macromolecules and biomolecules that are made up of long chains of amino acid. There is various function of protein such as DNA replication, speeding up chemical reaction, and helps to maintain the structure of cell.
A monomer is a type of molecule that can make chemical bond with any molecule and can form a long chain and polymer is a sequence of chain of an unspecified or unknown number of monomers.
RNA is ribonucleic acid and it is a nucleic acid which is found in almost all cells that are living and RNA is mostly similar to DNA but there is one difference between RNA and DNA and the difference is that RNA is single stranded but DNA is double stranded.
Therefore, The molecular weight of a protein in kilo dalton, that is made up of five amino acids is 5,000 grams per mole.
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Which of the various species concepts distinguishes two species based on the degree of genetic exchange between their gene pools?
The biological species concept distinguishes two species based on the degree of genetic exchange between their gene pools.
What is biological species concept?
A species taxon is a collection of creatures that may effectively interbreed and give birth to fertile offspring, according to the Biological Species Concept. That idea holds that both interbreeding within a species and reproductive barriers between creatures of various species help to protect the integrity of a species.
The biological species concept (BSC) was created to help people understand biological diversity, notably the widely acknowledged finding that sexually reproducing organisms are more likely to be found in genetic and phenotypic clusters than in a continuum of forms.
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