What is the difference between a sister chromatid and a non-sister chromatid?

Question

Elias Aboujaoude · Accepted Answer

Chromatids of same and other chromosomes.

Sister chromatids are of the same chromosomes, while the non-sister chromatids are of the different chromosomes. Thank you.

Jeremiah Allen · Answer

Sister chromatids belong to same chromosome while nonsister chromatids belong to different members of homologous pair.

In diploid eukaryotic cell, chromosomes are present in paired condition. A pair of same chromosomes are called homologous .

Each chromosome during synthesis phase of interphase undergo duplication of DNA. When cells enter in divisional phase, the chromosomes undergo dehydration and shorten by coiling. Hence each duplicated chromosome appears to be made up of two sister chromatids during prophase (first phase of division).

Chromatids of corresponding homologous member are called non-sister chromatids.

Natalie Ahrens · Answer

undefined Sister chromatids are replicated copies of the same chromosome, connected at the centromere, while non-sister chromatids are chromatids from different homologous chromosomes in a pair. Sister chromatids are genetically identical, while non-sister chromatids contain different combinations of alleles.

Sebastian Alvarez · Answer

undefined A sister chromatid is an identical copy of a chromatid produced by the replication of a chromosome, joined together by a centromere. Non-sister chromatids, on the other hand, are chromatids from different chromosomes that are not identical and do not have the same centromere.