Question

19. The hydrolysis of an enzyme will produce

a)glucose

b)amino acids

c)fatty acids

d)polysaccharides

22. The addition of a single nucleotide to a DNA segment is called a

a)mutagen

b)carcinogen

c)gene mutation

d)chromosome mutations

Answer 1

Ans- 19.) The hydrolysis of an enzyme will produce amino acids (b) . * Because most of the enzymes present in the biological system are proteins in nature, and proteins are polypeptides, made up of amino acids , linked together by peptide bond , hence on hydrolysis will give the amino acids.

Ans- 20.) The addition of a single nucleotide to a DNA segment is called a gene mutation. (c)  

* Addition of single nucleotide is called as insertion and results in frameshift mutations in the gene.  

* While chromosome mutations are usually caused by changes in the number of chromosomes during segregation, or by translocation , inversions, etc.