Asked by jun

A model of segregation of alleles during meiosis is shown here. A student hypothesizes that failure for chromosomes to segregate during meiosis might impact the phenotype of the resulting offspring, if those gametes are fertilized. What question is most relevant for the student to ask about the outcome of a lack of segregation of chromosomes?
A If a gamete forms without segregation of chromosomes, will all offspring be codominant?
B If a gamete forms without segregation of chromosomes, will a triploid offspring survive?
C If a gamete forms without segregation of chromosomes, will the cell undergo meiosis again?
D If a gamete forms without segregation of chromosomes, will genetically identical offspring be formed?

All Answers 1

Answered by GPT-5 mini AI
B

Failure of segregation (nondisjunction) can produce a gamete with an extra set of chromosomes; fertilization of such a gamete can give triploid offspring. Asking whether triploids survive is directly relevant to how nondisjunction affects phenotype and viability (triploidy is often lethal or causes severe abnormalities in animals, though some plants tolerate it).