The most interesting molecule in the living system is

(1) the most abundant genetic material

(2)the genetic material in most of the organisms

(3)the long polymer of deoxyribonucleotides

(4)all of the above

Subtopic:  The DNA |
 90%
From NCERT
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Which organism has more base pairs ?

1. E.coli

2. Bacteriophage

3. human

4. Yeast

Subtopic:  The DNA |
 81%
From NCERT
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How many types of nitrogenous bases are present in nucleic acid

(1) 4

(2) 3

(3) 5

(4) 6

Subtopic:  The DNA |
 59%
From NCERT
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Distance between two consecutive nucleotide pairs of DNA is

(1)0.34nm

(2)34angstrom

(3)3.4 micrometre

(4)34nm

Subtopic:  DNA Double Helix |
 87%
From NCERT
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If there are 10,000 nitrogenous base pairs in a DNA then how many nucleotides are there

(1)500

(2)10,000

(3)20,000

(4)40,000

Subtopic:  DNA Double Helix |
 59%
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If there are 10,000 nitrogenous base pairs in B-DNA then its length will be

(1)340nm

(2)3400nm

(3)34000nm

(4)340000nm

Subtopic:  DNA Double Helix |
 62%
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Cytidine is a

(1)nucleoside

(2)nitrogen base

(3)nucleotide

(4)nucleic acid

Subtopic:  The DNA |
 71%
From NCERT
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In rRNA, thymine pairs with 

(1)adenine

(2)uracil

(3)both 1 and 2

(4)None of these

Subtopic:  DNA vs RNA as Genetic Material |
From NCERT
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Which one of the following nucleotide sequences contains only 4 pyrimidine bases?

(1)UAGCGGUAA

(2)TGCCTAACG

(3)GATCAATGC

(4)GCUAGACAA

Subtopic:  The DNA |
 67%
From NCERT
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New strands of DNA are formed only in

(1)5’→3’ direction

(2)3’→5’ direction

(3)In both directions

(4)There is no specific polarity

Subtopic:  DNA Replication:III | DNA Replication |
 76%
From NCERT
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