When homologous chromosomes crossover, what occurs? A) Two ...

[curlz]

When homologous chromosomes crossover, what occurs?
A) Two chromatids get tangled, resulting in one re-sequencing its DNA.
B) Two sister chromatids exchange identical pieces of DNA.
C) Specific proteins break the two strands and re-join them with their homologs.
D) Each of the four DNA strands of a tetrad is broken and the pieces are mixed.
E) Maternal alleles are "corrected" to be like paternal alleles and vice versa.

[coco]

I'm pretty sure it's C. Good luck

[curlz]

Great..that really helped.