Cellular and Molecular Genetics

Question 1

What does a solid black square represent in a pedigree symbols?

Answer 1

Affected male.

Question 2

Ribose in RNA has an OH group at which position on the sugar ring?

a. 1
b. 2
c. 3
d. 4
e. 5

Answer 2

B.2

Question 3

Which best describes the mitochondrial genome?

a. Contains no introns
b. Inherited from the mother
c. inherited via non-mendellian genetics
d. encodes 13 peptides
e. all of the above

Answer 3

E

Question 4

What kind of mutation is present in sickle cell anemia?

a. Single nucleotide polymorphism
b. Insertion
c. Deletion
d. Frameshift

Answer 4

A

Question 5

What is the purpose of the 3’ polyadenylated tail?

a. acts as a stop codon
b. protects RNA from denaturization
c. acts as a nuclear export signal
d. aids binding to 50S ribosomal subunit

Answer 5

c

Question 6

Hairpin loops are created by -

a. A-T rich regions
b. G-C regions

Answer 6

b

Question 7

What kind of enzyme releases DNA supercoiling?

a. hydrolase
b. topoisomerase
c. ligase
d. oxidoreductase

Answer 7

b