Question

a. What is the difference between sister chromatid and homologous chromatid?

b. And homologous recombination with which will give back the exact identical original sequence back?

Answer 1

a.Difference are :

• Sister chromatid refers to chromatid that is made up production of exact copy of either parental chromosome or maternal chromosome while homologous chromatid refers to chromatid that is made up from both the paternal and maternal chromosomes.
• Sister chromatids contain identical and same versions/alleles of the same genes while homologous chromatids may contain either same or different versions /alleles of the same gene.
• Sister chromatids are joined by centromere while homologous chromatids are not.

b.Homologous recombination with sister chromatid will give back the exact identical original sequence back as they are exact copy of each other and they possess the same versions/alleles of the same genes.