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

Pentose sugar in the molecule of DNA is

Question # 2

Which one is non-directed orientation?

Question # 3

Chromosomal theory of inheritance was first formulated by.

Question # 4

A sequence of three nucleotides in mRNA is called.

Question # 5

RNA polymerase II synthesize.

Question # 6

DNA was discovered in

Question # 7

Each tRNA has a sequence of three bases called anticodon which is complementary to codon of

Question # 8

Which strand of DNA is transcribed.

Question # 9

A chromosome with equal length of its arms.

Question # 10

Repeating units of DNA are called.

Question # 11

Each Okazaki fragment is synthesized by.

Question # 12

Adenine and guanine are called

Question # 13

Origin site of replication is one in

Question # 14

The copping of mRNA from DNA is called.

Question # 15

No of chromosomes in Honey bee are.

Question # 16

Okazaki fragments are about 1000 - 2000 nucleotides long in

Question # 17

The stand which elongates towards the replication fork is.

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FSC Part 2 Biology Chapter 20 Online Test MCQ's

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FSc Part II Biology Chapter 0 Important MCQ's

Sr.# Question Answer
1 Which one is non-directed orientation?
A. Taxis
B. Kinesis
C. Tropism
D. Imprinting
2 Which one of the following is initiation codon.
A. AUG
B. GUA
C. UGA
D. GAC
3 Human cells contain types of tRNA molecules.
A. 20
B. 45
C. 195
D. 300
4 Every gene starts with initiation codon AUG which encodes for the amino acid.
A. Lysine
B. Serine
C. Proline
D. Methionine
5 Which strand of DNA is transcribed.
A. coding strand
B. Sense strand
C. Antisense strand
D. Conservative strand
6 Which of the following is a 'start' codon
A. AUG
B. UAG
C. UAA
D. UGA
7 Adenine and guanine are called
A. Purines
B. Pyrmidines
C. Both a & b
D. None of these
8 This condition appears as a result of point mutation.
A. Down syndrome
B. Turner syndrome
C. Sickel cell Anaemia
D. Klinefelter syndrome
9 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
10 DNA was discovered in
A. 1869
B. 1864
C. 1961
D. 1972

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