Answer:
Why do marathon runners collapse and die? Some of the reasons why marathon runners often collapse near the finishing line is because the build-up of lactic acid in the blood during the run triggers abnormal heart rhythms and also exhaustion, emotional stress, dehydration and heat stroke
Answer:
The correct option is C) Homologous chromosomes failed to separate, resulting in non-disjunction.
Explanation:
Non- disjunction can be described as a phenomenon in which the chromosomes fail to separate during cell division, resulting in both the chromosomes being transferred to a single gamete.
Non- disjunction can occur in three types:
- Non- disjunction can occur at the time of meiosis when the sister homologous chromosomes fail to separate.
- It might occur in mitosis when sister chromatids fail to separate.
- It might occur in meiosis II when sister chromatids fail to separate.