Answer:
ajjajajsjddyjcucdjjdjdbjdjd
sjsjsjdjssd
Explanation:
jdjdjdbdbdbdndjjdjdjdjd
The correct answer is:
The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.
Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.
Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.
Answer:
do not have a nucleus is the answer to the second one
small DNA floats freely in the membrane
True:
<span>Cell membrane: This cellular structure helps organisms maintain homeostasis by </span><span>controlling what substances may enter or leave cells.</span>
Answer:
ur ret4rded
Explanation:
bro ur stu p id this is 4th grader sh1t
