Questions and Answers

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