Question

In need of help for these two questions. Thank you in advance!

Restriction Enzyme A has the recognition sequence 5′- CTGCAG -3′. Restriction Enzyme B has the recognition sequence 5′- GCGC -3′. Based on this information, you can infer that:

A. Enzyme A will cut the genome into fewer pieces than will Enzyme B.
B. Enzyme A will cut a genome into more pieces than will Enzyme B.
C. Enzyme A will generate DNA pieces with blunt ends and Enzyme B will generate DNA pieces with sticky ends.
D. NONE OF THESE

Which of the following types of gene mutation in a protein-coding gene usually has the least-
severe (i.e., least-deleterious) phenotype?

A. base deletions
B. All generate equally severe phenotypes.
C. missense substitutions
D. nonsense substitutions

Answer 1

1)
2) C. missense substitutions