I the defective enzyme in gsd i is lysosomal alpha

III. If there are two different groups on each carbon, and the
highest priority groups for each carbon is on opposite sides, the
molecule is denoted “trans” or “E” isomer. – ✔
IV. Geometrical isomerism occurs when there is restricted
rotation around a C=C double bond. – X
ANSWER: C (2 statements are true)
10. I. The 5’ -end of a DNA contains a free hydroxyl. – X
II. The 3’ -end of a DNA contains a free phosphate. – X
III. In post-translational processes, splicing deletes introns.
- ✔
IV. In post-translational processes, splicing weaves exons
together. – ✔
ANSWER: C (2 statements are true)
11. Properties of a double helix.
I. base pairing –
II. either right-handed or left-handed –
III. parallel –
IV. A-T = G-C –
ANSWER: B (3 statements are true)
enlargement of the liver. –
ANSWER: D (1 statement is true)
X
8. I. Tay- Sach’s and Sandhoff’s diseases both affect
hexosaminidase A. –
II. The metachromatic leukodystrophy, the enzyme
✔
arylsulfatase A is defective. – ✔
✔
IV. Farber’s disease affects ceramidase. -
ANSWER: A (All statements are true)
✔
9. I. Stereoisomers are molecules having the same molecular
formula but different connectivity. –
II. If there are two different groups on each carbon, and the
highest priority groups for each carbon is on the same side, the
molecule is denoted “trans” or “Z” isomer. – ✔
X
7. I. The defective enzyme in GSD I is lysosomal alpha-
glucosidase. - ✔
II. The McArdle’s disease involves liver phosphorylase. – X
III. GSD III is an abnormality of the branching enzyme. – X
IV. Von Gierke’s disease causes hypoglycemia and ma ssive
12. I. Vitamin C deficiency: Scurvy – ✔
II. Vitamin A deficiency: Xerophthalmia – ✔
III. Vitamin D deficiency: Rickettsia – X
IV. Vitamin K deficiency: Excessive bleeding – ✔
ANSWER: B (3 statements are true)
13. I. Vitamin B1 deficiency: Wernicke-Korsakoff Syndrome –
II. Vitamin B2 deficiency: Cheilosis –
III. Vitamin B3 deficiency: Pellagra –
IV. Vitamin B5 deficiency: Burning Foot Syndrome –
ANSWER: A (All statements are true)
14. I. mRNA: messenger RNA; conveys info from DNA to
ribosomes. –
II. tRNA: transfer RNA; carry amino acids into the site of
protein synthesis. –
III. rRNA: ribosomal RNA; integral part of ribosomes. –
IV. SnRNA: small nucleus RNA; removes introns. –