Which event distinguishes anaphase from anaphase II? To efficiently provide the

Question

Which event distinguishes anaphase from anaphase II?

To efficiently provide the ideal amount of nitrogen fertilizer, some farmers make use of a “chlorophyll meter” that measures the amount of green light reflected off a leaf.
Why does this provide an indication of whether the plant may need more or less nitrogen?

A large family has a history of multiple aneuploid diseases such as Down Syndrome, trisomy-18 and Klinefelter Syndrome (XXY). The propensity to defects seems to be inherited, but the gene responsible is unknown.
What types of candidate genes would be most likely to lead to aneuploidy if they were mutated?

A.Anaphase produces haploid daughter cells and anaphase II results in diploid daughter cells B.Sister chromatids separated in anaphase II are different while they are identical in anaphase C.Spindle fibers separate the kinetochores in chromosomes in anaphase. D.The ploidy level will be reduced in anaphase II. E.Homologous chromosomes are separated in anaphase and chromosomses are separated in anaphase II

Explanation / Answer

Question-1

Answer- B.Sister chromatids separated in anaphase II are different while they are identical in anaphase

Question-2

Answer-A. A.Each chlorophyll molecule contains four nitrogen atoms that surround the Mg2+ ion, and these account for most of the nitrogen in a leaf.

Question-3

Answer- Genes that are part of the G1 checkpoint of mitosis.

Aneuloloidy (nondisjunction) usually occurs as the result of a weakened mitotic checkpoint, even under mutated conditions further leads to uneven distribution of chromatid material into the daughter cells.

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