Double layered nuclear, the outer nuclear membrane is continuous with the membrane of the rough endoplasmic reticulum (ER), it also continues with the inner nuclear membranes since the two layers are fused together at a numerous tiny holes called nuclear pores that perforate the nuclear enevelope
Plants, extinct/ancient animals, and dinosaurs
Answer:
<h2>Two normal cells, n and n;</h2><h2>One cell lacks chromosomes : n-n</h2><h2>One cell contain extra set of chromosomes: n+n=2n</h2>
Explanation:
If all of the chromosomes experience non-dis-junction in meiosis II, means that sister chromatids failed to separate during meiosis II then
a. half the cells are normal containing n number of chromosomes (n).
b. One cell lacks whole set of chromosomes
c. and one cell with two copies of the chromosomes (n+n).
Answer:
B.an error occurs when the damaged DNA is repairex
Explanation:
the best answer is B
