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

In 1944 Oswald Avery along with Colin Macleod and Maclyn McCarty repeated experiments of

Question # 2

Every 200 nucleotides the DNA duplex is coiled around a core of eight histone proteins forming a complex known as a

Question # 3

Chromosomal theory of inheritance was first formulated by.

Question # 4

Genetic code for the amino acid methionine is.

Question # 5

Walter Fleming first discovered chromosomes in the dividing cells of.

Question # 6

Human cells have 46 chromosomes consisting of

Question # 7

Anti codes present on

Question # 8

This condition appears as a result of point mutation.

Question # 9

In 1953, F . Sanger described the sequence of amino acids of.

Question # 10

DNA was discovered in

Question # 11

The genetic code for glycine is.

Question # 12

Innate behavior is all except;

Question # 13

Advantage of pecking orders is to:

Question # 14

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

Question # 15

DNA changes are called mutations and the organisms that have undergone such changes are called

Question # 16

RNA polymerase II synthesize.

Question # 17

Chromosomal part which uncoils, during inter phase is called.

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FSc Part II Biology Chapter 0 Important MCQ's

Sr.# Question Answer
1 DNA changes are called mutations and the organisms that have undergone such changes are called
A. Wild types
B. Changer
C. Mutants
D. Transmutants
2 In sickle cell anemia disease, a single thymine is replaced with an adenine in the DNA that codes for.
A. Valine
B. Glycine
C. Histidine
D. Glutamic acid
3 A sequence of three nucleotides in mRNA is called.
A. Cistron
B. Codon
C. Anticodon
D. Templet
4 The particular array of chromosomes that an individual possesses called its.
A. Genotype
B. Phenotype
C. epistasis
D. Karvotype
5 Histones are positively charged due to an abundance of the basic amino acids
A. Arginine
B. Lysine
C. Both a & c
D. Alanine
6 Pentose sugar in the molecule of DNA is
A. Ribose
B. Deoxyribose
C. Sucrose
D. Lactose
7 Every gene starts with initiation codon AUG which encodes for the amino acid.
A. Lysine
B. Serine
C. Proline
D. Methionine
8 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
9 V-shaped chromosomes are called.
A. Acrocentric
B. Metacentric
C. Telocentric
D. submetacentric
10 Innate behavior is all but;
A. Heritable
B. Intrinsic
C. Sterotypic
D. Flexible

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