Non-disjunction can occur if __________ chromosomes fail to separate during meiosis I.Question 8Select one:a.homologousb.heterologousc.defectived.mutated
Question
Solution
Non-disjunction can occur if homologous chromosomes fail to separate during meiosis I. So, the correct answer is a. homologous.
Here's a step-by-step explanation:
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Meiosis is a type of cell division that reduces the number of chromosomes in a parent cell by half to produce four gamete cells. This process is what allows for genetic diversity through sexual reproduction.
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Non-disjunction is an error in meiosis (or mitosis) where chromosomes do not separate properly. This results in cells with an abnormal number of chromosomes, which can lead to genetic disorders.
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In meiosis I, homologous chromosomes (one from each parent) pair up and should separate so that each daughter cell gets one chromosome from each pair.
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If these homologous chromosomes fail to separate (non-disjunction), one daughter cell will get both chromosomes and the other will get none. This leads to an abnormal number of chromosomes in the resulting gametes.
Similar Questions
hen the replicated chromosomes fail to separate during meiosis, this process is knownas _____. aNondisjunction bDisjunction cReplication dMutation
Nondisjunction of the ______ chromosome during meiosis can produce offspring that are XXX or XXY.Multiple choice question.
What occurs when chromosomes do not separate during meiotic divisions?Multiple choice question.nondisjunctioncrossing overconjugationfertilization
What term refers to the failure of homologous chromosomes to separate during meiosis I?Multiple choice question.Crossing overNondisjunctionDiploidSynapsis
Crossing over of homologous chromosomes does not occur.Group of answer choicesmeiosis onlyboth mitosis and meiosismitosis onlyneither mitosis nor meiosisNext
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