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

Okazaki fragments are about 1000 - 2000 nucleotides long in

Question # 2

The copping of mRNA from DNA is called.

Question # 3

The base pairs in human genome are.

Question # 4

Anti codes present on

Question # 5

This condition appears as a result of point mutation.

Question # 6

Human cells contain types of tRNA molecules.

Question # 7

Chromosomes appear inside the nucleus at the time of.

Question # 8

32P and 35S labeled viruses were used in his experiments by

Question # 9

Chromosomal theory of inheritance was first formulated by.

Question # 10

A strand of DNA, which is not transcribed is called as.

Question # 11

Highly condensed portions of the chromatin are called.

Question # 12

The number of nucleotides in the DNA of a typical human chromosome is about

Question # 13

Which of the following is a 'start' codon

Question # 14

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

Question # 15

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

Question # 16

Which one is non-directed orientation?

Question # 17

A chromosome with equal length of its arms.

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FSc Part II Biology Chapter 0 Important MCQ's

Sr.# Question Answer
1 The no of chromosome in mouse is
A. 6
B. 32
C. 26
D. 40
2 Every gene starts with initiation codon AUG which encodes for the amino acid.
A. Lysine
B. Serine
C. Proline
D. Methionine
3 No of chromosomes in Honey bee are.
A. 6
B.
20
C. 32
D. 40
4 DNA changes are called mutations and the organisms that have undergone such changes are called
A. Wild types
B. Changer
C. Mutants
D. Transmutants
5 Which of the following is a non sense codon.
A. UGA
B. UGG
C. AUG
D. AUC
6 Chromosomal part which uncoils, during inter phase is called.
A. Chromatids
B. Satellite DNA
C. Euchromatin
D. Heterochromatin
7 Adenine and guanine are called
A. Purines
B. Pyrmidines
C. Both a & b
D. None of these
8 A central role for chromosomes in heredity was first suggested in 1900 by.
A. Karl correns
B. W. Sutton
C. F. Griffiths
D. T.H.Morgan
9 Okazaki fragments are about 1000 - 2000 nucleotides long in
A. Prokaryotes
B. Eukaryotes
C. Both a & b
D. None of these
10 The copping of mRNA from DNA is called.
A. Translation
B. Transduction
C. Transcription
D. Transformation

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