Biology, 29.08.2019 11:00, nyameneak

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.

Answers: 1

Show answers

Other questions on the subject: Biology

Biology, 22.06.2019 11:00, imelda249

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.

Answers: 3

continue

Biology, 22.06.2019 11:00, braxtengames

Which measure of an earthquake depends on how close you are to the focus?

Answers: 3

continue

Biology, 22.06.2019 13:00, ninaaforever

Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere

Answers: 1

continue

Biology, 22.06.2019 17:00, MoneyMike42

The part of the eye that closes and opens to let light in is .

Answers: 2

continue

Do you know the correct answer?

When homologous chromosomes crossover, what occurs?
a) two chromatids get tangled, resulting...