NTA Abhyas NEET2020BotanyCell Cycle and Cell DivisionPractice
Sister chromatids of a chromosome have:
Options
- ADifferent genes at the same locus
- BDifferent alleles at the same gene at the same locus
- CSame alleles of the same gene at the same locus
- DSame alleles at different Loci.
Correct answer
C. Same alleles of the same gene at the same locus
Step-by-step solution
Sister chromatids of a chromosome are formed as a result of DNA replication during the S phase of interphase. Thus, sister chromatids consist of the same alleles of the same gene at the same locus.