Answer:
The correct answer is A non disjunction during meiosis.
Explanation:
Nondisjunction occur when the sister chromatids does not separate during the course of cell division.As a result the daughter cells those are formed by non disjunction contain abnormal number of chromosomes.
Trisomy 21 or down syndrome is also caused by non disjunction as the 21st chromosome is not separated during the period of development.This ultimately result in the production of daughter cell containing extra copy of 21th chromosome.Thus the newly produced cell contain 47 chromosomes with a an additional third copy of chromosome 21.
Answer:
Thanks won't tell them anything and neither anyone else
Answer:
P-321:
contains isotope that is use to mark DNA
Radioactivty is found inside infected bacterium
results confirm DNA is the genetic materrial. od the bacteriophage\
rest go in S-35
Explanation:
I just took the test
good luck <3
Answer:
a. work ethics, because the principle that hard work is intrinsically virtuous or worthy of reward
Explanation:
Answer:
convergent boundary where oceanic plate meets an oceanic plate
Explanation:
because someting pull slide?
gravity stuff where the oceanic plate is being pulled down into the mantle