Molecular Biology and Genetics

Question 1

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Double stranded DNA virus with 20,000 base pairs has nucleotides

20,000
10,000
666
40,000

Reveal answer Fill a bubble to check yourself

Answer

Arrangement of nucleotides

Answer

5' AAAU-3'

Answer

Right handed coiling and antiparallel

Answer

Antiparallel polarity

Answer

Double stranded DNA

Answer

Nucleobases

Answer

Complementary and antiparallel

Answer

DNA minisatellite

Answer

Back bone has alternate ribose sugar and phosphate

Answer

5 x $10^9$

Question 2

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Coded information in nucleic acid depends upon

Position of nucleotides
Number of nucleotides
All the above

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Question 3

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Nucleotide pairs present in one turn of DNA helix

4
8
10
9

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Question 4

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

The codon for anticodon 3' UUUA-5' is

5' UAAA-3
3 UAAD-5
3' AAAU-5

Reveal answer Fill a bubble to check yourself

Question 5

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

DNA duplex shows

Right handed coiling and parallel
Left handed coiling and antiparallel
Left handed coiling and parallel

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Question 6

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

DNA strands have

Quaternary structure
Same polarity
Disulphide bond

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Question 7

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Chargaffs rules are applicable to

Single stranded RNA
Single stranded DNA and RNA
Single stranded DNA

Reveal answer Fill a bubble to check yourself

Question 8

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

DNA contains nucleobases, sugar and phosphate. Removal of which among these will not affect length of DNA

Phosphate
Sugar
None of the above

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Question 9

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

DNA double helix is

Complementary and parallel
Without super coils
Always circular

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Question 10

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Which is an example of highly repetitive DNA?

Alu elements
Histone gene cluster
Dispersed repetitive DNA

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Question 11

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

What is not relevant to DNA double helix ?

One turn every 34
Diameter 20
Distance between adjacent nucleotides 3.4
Sugar molecules are joined by phosphodiester bonds

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Question 12

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Diameter of DNA double helix is

34 A
20 A
3.4 A
340 A

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Question 13

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

Single base DNA differences are called

VNTR
SSCP
SNP
Expressed sequence tags
Repetitive

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Question 14

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

1.7 m double helical DNA will have base pairs

3.4 x $10^9$
1.7 x $10^9$
1.7 x $10^5$

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Question 15

Multiple choice structure of dna and rna nucleic acids and polynucleotides nucleic acids and protein synthesis molecular biology biology

In double helix model of DNA, how far is each base pair from the next base pair

3.4 nm
0.34 nm
2.0 nm
34 nm
0.034 nm

Reveal answer Fill a bubble to check yourself

Molecular Biology and Genetics

Molecular Biology and Genetics Questions