In each of the multiple choice questions ONE of the answers is CORRECT.

Q1. How many pairs of autosomes are there in a human genome?

21
22
23
24

Q2. What are the male sex chromosomes?

YX
YY
XX
XY

Q3. What is the role or ribosomal RNA in protein synthesis?

Carry amino acids to ribosomes
Synthesis of proteins
Encodes protein sequence
Facilitates interaction of other RNA forms

Q4. Which cell organelle can be described as the final packaging location for proteins and lipids?

Endoplasmic reticulum
Golgi body
Ribosome
Cytoplasm

Q5. Where do peroxisomes form?

Endomembrane
Mitochondria
Cytoplasm
Lysosyme

Q6. How much of the mass of the human body is accounted for by oxygen?

50%
55%
60%
65%

Q7. What is the atomic mass of an element based on?

Number of protons and neutrons
Number of protons and electrons
Number of neutrons and electrons
Number of anaions and cations

Q8. Which structural level of a macromolecule is said to provide its backbone?

Primary
Secondary
Tertiary
Quartiary

Q9. How many amino acids are present in the human body?

10
20
30
40

Q10. Which term describes the chemical reactions involved in breaking complex molecules?

Anabolism
Catabolism
Anatabolism
Canabolism

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