Question # 1

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

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Wild types

Changer

Mutants

Transmutants

The stand which elongates towards the replication fork is.

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Leading

Lagging

Okazaki

Primer

The number of chromosomes in frog is

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52

26

13

7

The base pairs in human genome are.

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Two billion

Three billion

Four billion

Five billion

Morphological characteristics of chromosome are collectively called.

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Holotype

Karyokinesis

Karyotype

Neotype

Which one is non-directed orientation?

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Taxis

Kinesis

Tropism

Imprinting

A sequence of three nucleotides in mRNA is called.

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Cistron

Codon

Anticodon

Templet

Which of the following is a 'start' codon

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AUG

UAG

UAA

UGA

Origin site of replication is one in

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Prokaryotes

Eukaryotes

None of these

Both a & b

The genetic code for glycine is.

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UAG

GAU

GUA

GGU

Pentose sugar in the molecule of DNA is

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Ribose

Deoxyribose

Sucrose

Lactose

The copping of mRNA from DNA is called.

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Translation

Transduction

Transcription

Transformation

In prokaryote within promoter there are two binding sites TTGACA also called -35 sequence and TATAAT also called

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-10 sequence

- 20 sequence

- 30 sequence

- 35 sequence

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

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Histomone

Nucleosome

Peroxisome

Glyoxisome

Genetic code for the amino acid methionine is.

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AUC

UGC

CGC

AUG

All the 64 codons were tested by

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Marshall Nirenberg

Philip Leader

Har Gobind Khorana

All a,b,and,c

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