Question

81. Choose the false statement:

A. When a mutation results in a SNP that changes a single codon in a synonymous manner, this type of mutation can lead to altering a protein’s function.

B. During the first meiotic division, cells go from diploid to haploid; in addition, both meiotic recombination events occur at this time, crossing over followed by random assortment.

C. During meiosis II the sister chromatids making up each chromosome, which at this point are no longer identical to one another, are separated from each other and segregated into each of the two daughter cells.

Answer 1

Answer- C) During meiosis II the sister chromatids making up each chromosome, which at this point are no longer identical to one another, are separated from each other and segregated into each of the two daughter cells.

Reason- The synonymous mutations in SNPs can change the secondary structure of mRNA that causes low protein expression levels. They can affect protein structures as well as protein folding. Thus, have a significant effect on the function of proteins.

The meiosis-1, separates pair of homologous chromosomes to halve the chromosome number i.e diploid to haploid.The random  assortment of chromosomes occurs during meiosis I.

The meiosis-2 results in the formation of 4 daugtsr nuclei.