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Question: A1) How are sister chromatids and homologous chromosomes different from each other? – Free Chegg Question Answer

A1) How are sister chromatids and homologous chromosomes different from each other?

a-Homologous chromosomes are identical copies of each other. One sister chromatid comes from the father, and one comes from the mother.
b-Sister chromatids are only formed during mitosis. Homologous chromosomes are formed during meiosis.
c-Homologous chromosomes contain the same gene loci but may have different alleles of a particular gene. Sister chromatids are identical copies of each other produced during DNA replication.*
d-Homologous chromosomes are closely associated with each other in both mitosis and meiosis. Sister chromatids are only associated with each other during mitosis.
e-They are not different. Homologous chromosomes and sister chromatids are both identical copies of each other.

A2 After telophase I of meiosis, the chromosomal makeup of each daughter cell is

i-diploid, and the chromosomes are each composed of two chromatids.
ii-diploid, and the chromosomes are each composed of a single chromatid.
iii-haploid, and the chromosomes are each composed of two chromatids.
iv-haploid, and the chromosomes are each composed of a single chromatid.
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  • A1) Homologous chromosomes contain the same gene locibut may have different alleles of a particular gene. Sister chromatid are identical copy of of each other produced during DNA replication.

Homologous chromosomes are made of both maternal and paternal chromosome.

  • A2)  haploid, and the chromosomes are each composed of two chromatids.

Chromosome of homologous pair get accumulated in the both sides of cell. And Cytokynesis take place. Each daughter nuclei will contain ‘n’ no of chromosome.

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