Question

During meiosis I in an individual carrying a reciprocal translocation, the homologous chromosomes synapse with each other via the formation of a structure that contains four pairs of sister chromatids. This unusual structure is called a translocation ______.

Multiple choice question.
cross
loop
bridge
domain

Answer 1

During meiosis I in an individual carrying a reciprocal translocation, the unusual structure formed is called a translocation bridge. It contains four pairs of sister chromatids from the homologous chromosomes.

Step-by-step explanation:

The unusual structure formed during meiosis I in an individual carrying a reciprocal translocation is called a translocation bridge. During prophase I, the homologous chromosomes in a reciprocal translocation synapse with each other, resulting in the formation of this structure. The translocation bridge contains four pairs of sister chromatids from the homologous chromosomes.