Question

At the end of Meiosis I each chromosome has how many sister chromatids ?
A)1
B)2
C)3
D) 4

Answer 1

D is the answer it will have 4 sister chromatids

Answer 2

False, answer is B, at the end of Meiosis 1 there will be 2 haploid cells (4 at the end of Meiosis 2) with each haploid cell containing two sister chromatid per chromosome.

@KatieGrl17

Answer 3

no it doubles

Answer 4

@bigrob30117 Show me that, based on today's studies, the answer is B, show me the proof.

Answer 5

@bigrob30117 Where is the logic that 1 chromosomes will have 4 sister chromatids? That's unheard of.

Answer 6

Sister chromatids are generated when a single chromosome is replicated into two copies of itself, these copies being called sister chromatids. Compare sister chromatids to homologous chromosomes, which are the two different copies of a chromosome that diploid organisms (like humans) inherit, one from each parent.

A full set of sister chromatids is created during the synthesis (S) phase of interphase, when all the chromosomes in a cell are replicated. The two sister chromatids are separated from each other into two different cells during mitosis and during the second division of meiosis.

Sister chromatids are by and large identical (since they carry the same alleles, also called variants or versions, of genes) because they derive from one original chromosome. An exception is towards the end of meiosis, after crossing over has occurred, because sections of each sister chromatid may have been exchanged with corresponding sections of the homologous chromatids with which they are paired during meiosis. Homologous chromosomes might or might not be the same as each other because they derive from different parents.

There is evidence that, in some species, sister chromatids are the preferred template for DNA repair.[1] Sister chromatid cohesion is essential for the correct distribution of genetic information between daughter cells and the repair of damaged chromosomes. Defects in this process may lead to aneuploidy and cancer, especially when checkpoints fail to detect DNA damage or when incorrectly attached mitotic spindles don't function properly.

Answer 7

Thanks @alphadxg...

Answer 8

@bigrob30117 Read what you just posted, you are contradicting what you think is the right answer, and what you are telling me...

@KatieGrl17 no problem.

Answer 9

ok

Answer 10

@bigrob30117 Read the first sentence of what you posted, you support my answer.