OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a person has a genotype of RR, what do you know about their gametes (sex cells)?
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They will all carry the R allele.
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They will all carry RR.
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Some will carry R, some will carry r.
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They will all carry the r allele.
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Explanation:
Detailed explanation-1: -Q. If a person has a genotype of RR, what do you know about their gametes (sex cells)? They will all carry the R allele.
Detailed explanation-2: -Rr x Rr. You’ll note here that all offspring are not pink. Your genotypic ratio is 25% (RR), 50% (Rr), and 25% (rr). The phenotypic ratio is also the same in this case, with 25% red (RR), 50% pink (Rr), and 25% white (rr).
Detailed explanation-3: -To summarize, when you use the term gamete, it refers to a newly created organism from the union of a male sperm cell and a female egg. The term genotype, on the other hand, refers to the specific ‘genetic’ characteristics and heritable genetic identity that newly created ‘life’ would possess.
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