Are the sister chromatids identical or different What is the implication of this?

Are the sister chromatids identical or different?

The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere. During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.

Which of the following are true about sister chromatids?

Sister chromatids are exact copies of each other and are formed just prior to cell division. After mitosis, sister chromatids contain the same genes, but they may have different alleles. Sister chromatids are produced during mitosis. All of these statements about sister chromatids are TRUE.

Are sister chromatids still identical after crossing?

When chromatids “cross over,” homologous chromosomes trade pieces of genetic material, resulting in novel combinations of alleles, though the same genes are still present. … If crossing over did not occur until sometime during meiosis II, sister chromatids, which are identical, would be exchanging alleles.

Why do two chromatids of a chromosome have the same alleles?

The sister chromatids carry the same genes in the same loci but can have different alleles. It is because of one half from the same. The correct answer is option C because sister chromatids are duplicated copies of each other so they will possess the same alleles of the same gene at the same locus.

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What is the difference between a sister chromatid and a daughter chromosome?

Definition: A daughter chromosome is a chromosome that results from the separation of sister chromatids during cell division. … Paired chromatids are held together at a region of the chromosome called the centromere. The paired chromatids or sister chromatids eventually separate and become known as daughter chromosomes.

Which of the following best describes sister chromatids?

Which of the following best describes the relationship between a chromosome and sister chromatids? Joined identical copies of a duplicated chromosome are called sister chromatids.

Which of the following is not true for sister chromatids?

The correct answer is option C. The statement falsely describes sister chromatids. The sister chromatids only join together during the prophase stage of cell division. Prior to prophase, the chromatids are still uncoiled inside the nucleus of the parent cell.