Second Year Biology Chapter 20 Online MCQ Test for 2nd Year Biology Chapter 20 Chromosomes and DNA Preparation

FSC Part 2 Biology
Chapter 20 Test

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Biology FSC Part 2 Chapter 20 Online MCQ's Test

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Question # 1

Chromosomal part which uncoils, during inter phase is called.

Question # 2

RNA polymerase II synthesize.

Question # 3

Unlike most proteins, histones are.

Question # 4

Highly condensed portions of the chromatin are called.

Question # 5

A central role for chromosomes in heredity was first suggested in 1900 by.

Question # 6

Genetic code for the amino acid methionine is.

Question # 7

In sickle cell anemia disease, a single thymine is replaced with an adenine in the DNA that codes for.

Question # 8

Walter Fleming first discovered chromosomes in the dividing cells of.

Question # 9

The number of chromosomes in frog is

Question # 10

All the 64 codons were tested by

Question # 11

Each Okazaki fragment is synthesized by.

Question # 12

The no of chromosome in mouse is

Question # 13

V-shaped chromosomes are called.

Question # 14

Origin site of replication is one in

Question # 15

Transfer of genetic material from one cell to other that can alter the genetic make up of recipient cell is called.

Question # 16

In prokaryote within promoter there are two binding sites TTGACA also called -35 sequence and TATAAT also called

Question # 17

Genetic code is a combination of 3 nucleotides in DNA which specify a particular

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FSc Part II Biology Chapter 0 Important MCQ's

Sr.# Question Answer
1 The base pairs in human genome are.
A. Two billion
B. Three billion
C. Four billion
D. Five billion
2 Which of the following is a 'start' codon
A. AUG
B. UAG
C. UAA
D. UGA
3 In 1953, F . Sanger described the sequence of amino acids of.
A. Myoglobin
B. Insulin
C. Keratin
D. Globulin
4 Every 200 nucleotides the DNA duplex is coiled around a core of eight histone proteins forming a complex known as a
A. Histomone
B. Nucleosome
C. Peroxisome
D. Glyoxisome
5 The number of chromosomes in frog is
A. 52
B. 26
C. 13
D. 7
6 Innate behavior is all except;
A. Coded in DNA
B. Modified in individuals life span
C. Modified with species evolution
D. Programmed responses to external stimuli
7 In sickle cell anemia code for glutamic acid is replaced by.
A. Leucine
B. Valine
C. Proline
D. Histidine
8 In 1944 Oswald Avery along with Colin Macleod and Maclyn McCarty repeated experiments of
A. Lamarck
B. Griffith
C. Darwin
D. Spemann
9 Which of the following is a non sense codon.
A. UGA
B. UGG
C. AUG
D. AUC
10 Origin site of replication is one in
A. Prokaryotes
B. Eukaryotes
C. None of these
D. Both a & b

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