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madam [21]
3 years ago
8

which choice is a chemical messenger that can directly influence gene expression? a. nonsteroid hormone b. steroid hormone c. AT

P d. cAMP
Biology
1 answer:
anastassius [24]3 years ago
4 0
B. Steroid hormone

This is because most hormones are steroids, that send long distance signaling throughout your body.
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How many steps are in the water treatment process. a. 5 c. 6 b. 7 d. 17
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Evolution is one of the unifying themes of biology. Evolution involves change in the frequencies of alleles in a population. For
lapo4ka [179]

A Mutation occurring in the population will change the allelic ratio.

<h3>What is evolution?</h3>

Evolution refers to the changes that occurs in organisms over a long period of time such that those changes results in new species better adapted to their environment and having higher specialization.

One of the factors of evolution is mutation.

According to the Hardy-Weinberg principle, the allele and genotype frequencies of a population of organism in equilibrium will remain constant in the absence of evolutionary influences.

Therefore, if a mutation occurs in the population, the allelic ratio will change.

Learn more about Hardy-Weinberg principle at: brainly.com/question/1365714

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2 years ago
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3 years ago
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The Schachter-Singer theory of emotion:
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C. says the frontal lobes interpret the body's reaction.

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The Schachter-Singer theory of emotion was created by Stanley Schachter and Jerome E. Singer. They were researchers and they established the theory as being a two factored one.

They noticed that for a physiological or bodily change to occur there must be an event which triggers it. The change is then interpreted by the body through the frontal lobes and emotion is then experienced.

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