Which of the following is false concerning sister chromatids? A. The formation of sister chromatids doubles...

Which of the following is false concerning sister chromatids?

A. The formation of sister chromatids doubles the amount of DNA in a cell.

B. Sister chromatids consist of two identical copies of a single homolog.

C. Sister chromatids are held together at the centromere.

D. Sister chromatids are formed during the S phase of the cell cycle.

E. During meiosis they separate from one another during meiosis I.

Solutions

Expert Solution

The false concern about sisterchrometid is that they are seprate from one another during meiosis II,sister chromatid are identical copies (chromatids) formed by the replication of a chromosome,and both copies joined together by centromere. homologous chromosomes are separated in meiosis I, the sister chromatids from each pair are separated.

Meiosis II is the second meiotic division, and separation of sister chromatids. the process is similar to mitosis,But genetic results are different. The end result is production of four haploid cells (n chromosomes, 23 in humans) from the two haploid cells produced in meiosis I.

The four main steps of meiosis II are: prophase II, metaphase II, anaphase II, and telophase II.

At prophase II, a spindle apparatus appears and attach to the chromosomes, During metaphase II, chromosomes are lined up at equator and at end of metaphase, During anaphase II, sister chromatids of chromosomes split into sister chromosomes,During telophase II, sister chromatids separate and move toward each pole.

gladiator answered 1 year ago

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