Consider the following statements:

I. Deoxyribonucleoside triphosphates act as substrates as well as provide energy for polymerization reaction during DNA replication.

II. The replication of DNA is both semiconsenvative and semi- discontinuous

III. In bacterial DNA replication there are multiple ori and replication fork moves bi-directionally

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  DNA Replication:III | DNA Replication |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

(nRNA codons)

Column II

(Amino Acid)

I. GUG

II. UGG

III. UAC

IV. GAG

1. Tryptophan

2. Valine

3. Glutamic acid

4. Tyrosine

 

Codes

             I           II         III         IV

(1)         1           2           3           4

(2)         2           1           4           3

(3)         2           1           3           4

(4)         1           2           4           3

Subtopic:  Genetic Code: I | Genetic Code |
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If there are 999 bases in an RNA that codes for a protein with 333 amino acids and the base at position 901 is deleted such that the length of teh RNA becomes 998 bases, how many codons will be altered?

(1) 1

(2) 11

(3) 33

(4) 333

Subtopic:  Translation Mechanism |
 69%
NEET - 2017
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DNA fragments are

(1) positively charged

(2) negatively charged

(3) neutral

(4) either positively or negatively charged depending on their size

Subtopic:  The DNA |
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During DNA replication, Okazaki fragments are used to elongate

(1) The leading strand towards replication fork

(2) The lagging strand towards replication fork

(3) The leading strand away from replication fork

(2) The lagging strand away from replication fork

Subtopic:  DNA Replication:III | DNA Replication |
 56%
NEET - 2017
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Spliceosomes are not found in cells of 

(1) plants

(2) fungi

(3) animals 

(4) bacteria

Subtopic:  Transcription: IV | Transcription |
 69%
NEET - 2017
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The final proof for DNA as the genetic material come from the experiments of 

1. Griffith

2. Hershey and chase 

3. Avery, Macleod and McCarty 

4.  Hargobind Khorana 

Subtopic:  Search for Genetic Material:I | Search for Genetic Material: II | Search for Genetic Material |
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The association of histone H1 with a nucleosome indicates 

(1) transcription is occuring

(2) DNA replication is occuring

(3) the DNA is condensed into chromatin fibre

(4) the DNA double helix is exposed

Subtopic:  DNA Packaging |
 86%
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NEET - 2017
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Which of the following RNAs should be most abundant in animals cell ?

(1) rRNA

(2) tRNA

(3) mRNA

(4) miRNA

Subtopic:  Transcription: III | Transcription |
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NEET - 2017
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Taylor conducted the experiments to prove semi-conservative mode of chromosome replication on

(1) Vinca rosea

(2) Vicia faba

(3) Drosophila melanogaster

(4) E. coli

Subtopic:  DNA Replication: I | DNA Replication |
 83%
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NEET - 2016
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