There are several genetic disorders that occur in many organisms where the chromosomes do not separate properly in meiosis which causes the gametes to have an abnormal number of chromosomes (refer to the diagram below). Which of the following is the stage where this would occur?

Prophase II of meiosis
Anaphase I of meiosis
Metaphase II of meiosis
Telophase II of meiosis

Question

There are several genetic disorders that occur in many organisms where the chromosomes do not separate properly in meiosis which causes the gametes to have an abnormal number of chromosomes (refer to the diagram below). Which of the following is the stage where this would occur?

     Prophase II of meiosis
       Anaphase I of meiosis
       Metaphase II of meiosis
       Telophase II of meiosis

abhisar · Answer

What do you think it should be?

rissyroo118 · Answer

B

abhisar · Answer

Yes that's correct. It is Anaphase I

abhisar · Answer

of Meiosis I

abhisar · Answer

Failure of segregation of a bivalent in anaphase I goes by three separate names: "MI", "homologue" or "classic" nondisjunction.