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:
Your circulatory system delivers oxygen rich blood to your bones. Meanwhile your bones are busy making new blood cells. Working together, these systems maintain eternal stability and balance, otherwise known as homeostasis.
Explanation:
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Could be the sun but that's just me
The answer is root hairs.
Rhizoids derive from epidermal cells of bryophytes. They are hair-like structures similar to roots of vascular plants. But, they are unicellular structures, <span>unlike roots, which are multicellular. Not only they look alike, but they have similar functions as roots. The functions of rhizoids are the absorption of water and minerals from the soil and a support of the bryophytes.</span>
