Which of the following is not a reason why two children born to the same parents (not identical twins)are unlikely to have the same genetic makeup?
A)Crossing-over recombines portions of sister chromatids.
B)Fertilization provides a new pairing of chromosomes.
C)Each sperm or egg has a random assortment of chromosomes,half from each pair.
D)Chromosomes align themselves independently during meiosis I.
E)Since they are produced at different times,all sperm will be genetically different from all other sperm.

Question

Quizplus · Accepted Answer

Each sperm and egg produced during meiosis will have a different combination of chromosomes due to independent assortment. Therefore, even siblings produced from the same parents will likely have different genetic makeup because different sperm and eggs are involved in fertilization.

Which of the Following Is Not a Reason Why Two