Question

A misalignment of repetitive sequences on two chromosomes can cause an abnormal crossover to happen. This is called _____ _____ recombination, and it results in one chromatids carrying a duplication and another containing a deletion.

Answer 1

Abnormal crossover, also known as recombination or crossover, can cause a duplicated chromatid and a deleted chromatid. This process occurs during prophase I of meiosis when genetic material is exchanged between non-sister chromatids of homologous chromosomes. Errors during this recombination can result in various structural rearrangements in chromosomes.

Step-by-step explanation:

Abnormal crossover is the term used to describe a misalignment of repetitive sequences on two chromosomes, resulting in a duplicated chromatid and a deleted chromatid. This process is also known as recombination or crossover, which occurs during prophase I of meiosis when genetic material is exchanged between non-sister chromatids of homologous chromosomes. Errors during this recombination process can lead to structural rearrangements in chromosomes such as inversions, translocations, duplications, and deletions.