A gene is known to have three alleles: p, q, and r. The frequency of p is estimated at 0.70. Thus, the frequencies or q and r must be 0.15 each
Indicate whether the statement is true or false
FALSE
Explanation: The three frequencies can assume any value as long as they all sum to 1.0. Moreover, for a three-allele gene, knowing the frequency of just one allele is not sufficient to determine the frequencies of the other two alleles.
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Which of the following features are used to identify chordates?
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Skin color in humans is an example of an evolutionary trade-off: a situation where a trait that is an advantage in one context is a disadvantage in a different context. Darker skin protects DNA from damage due to ultraviolet radiation (an advantage) but makes it harder for the body to produce vitamin D (a disadvantage). Based on what you’ve learned, which of the following describe other examples of evolutionary trade-offs? Select all that apply.
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