Questions and Answers

7. A cell in G₁ of interphase has 12 chromosomes. How many chromatids will be found per cell during metaphase II of meiosis?
(A) 6
(B) 12
(C) 18
(D) 24

6. An alternative to glycolysis pathway is:
(A) glyoxylate pathway
(B) pentose phosphate pathway
(C) citric acid cycle
(D) gluconeogenesis

5. The product commercially produced by animal cell culture is:
(A) insulin
(B) tissue plasminogen activator
(C) interferon
(D) hepatitis B vaccine

4. Yeast artificial chromosomes (YACs) are used for cloning:
(A) large segments of DNA
(B) mRNA
(C) bacterial DNA
(D) yeast DNA

3. Apoptosis is characterized by:
(A) necrosis
(B) programmed cell death
(C) membrane leaky syndrome
(D) cell cycle arrest process

2. Members of the antibody protein family that have common structural features are collectively known as:
(A) haptens
(B) allergens
(C) antigens
(D) immunoglobulins

1. Embryonic stem cells are derived from:
(A) fertilized embryo
(B) unfertilized embryo
(C) sperm
(D) kidney