Genes in two species that are derived from the same ancestral gene in their most recent common ancestor are called
(A) analogs
(B) heterologs
(C) orthologs
(D) paralogs

Metabolic acidosis is associated with decreased plasma level of
(A) bicarbonate
(B) lactate
(C) oxygen
(D) urea

Which one of the following is NOT used as a component in subunit vaccines?
(A) Capsular polysaccharide
(B) Inactivated exotoxin
(C) Inactivated virus
(D) Viral glycoprotein

Q.20 Competition between two populations in an ecosystem is (A) beneficial (+) to both the populations (B) deleterious (˗) to both the populations (C) beneficial (+) to one population, but deleterious (˗) to the other population (D) beneficial (+) to one population, but no effect (0) on the other population

Q.19 Which of the following is NOT a characteristic morphological feature of apoptotic cells? (A) Disassembly of nuclear envelope (B) DNA fragmentation (C) Increased cell size (D) Membrane blebbing

Q.18 Which one of the following genetic crosses and their results indicates cytoplasmic inheritance? (A) Wild-type male  mutant female → 100% progeny are mutant (B) Wild-type male  mutant female → 25% progeny are wild-type (C) Mutant male  wild-type female → 50% progeny are mutant (D) Mutant male  wild-type female → 75% progeny are wild-type

Q.17 Match the morphology in Group I with the corresponding microorganism in Group II: Group I: P. Coccus Q. Rod R. Comma S. Spiral Group II: 1. Treponema 2. Bacillus 3. Neisseria 4. Vibrio

Q.16 Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]: Assertion [a]: The resolving power of a transmission electron microscope is higher than that of the light microscope. Reason [r]: The wavelength of electrons is shorter than that of visible light.

Q.15 Which one of the following immunoglobulins crosses the human placenta? (A) IgA (B) IgE (C) IgG (D) IgM

Q.14 Which one of the following hormones is a tyrosine derivative? (A) Epinephrine (B) Estradiol (C) Progesterone (D) Testosterone