Explanation:
In population genetics, the term evolution is defined as a change in the frequency of an allele in a population. ... The allele frequency within a given population can change depending on environmental factors; therefore, certain alleles become more widespread than others during the process of natural selection.
Answer:
The factor that is tested is called the variable.
The variable is also what is changed in an experiment.
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Answer:
The correct answer is a Protein
Explanation:
Proteins are macromolecules consisting of amino acids which are joined by peptide bonds.
Protein molecule has two ends, amino(-NH2) group is present at one end that is known as amino terminal end or N terminal end whereas carboxyl group is present at the another end that is called carboxy terminal end or C terminal end.
Answer: population
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But this rule rule is applicable only for double stranded DNA molecule. The possibility of Adenine=40% and Thymine=60% is only in single stranded DNA molecule. In the question, the DNA sample referred is a single stranded DNA. hope it helps :D
