Question # 1

A sequence of three nucleotides in mRNA is called.

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Cistron

Codon

Anticodon

Templet

Which one is non-directed orientation?

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Taxis

Kinesis

Tropism

Imprinting

A strand of DNA, which is not transcribed is called as.

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Template strand

Antisense strand

Lagging strand

coding strand

The stand which elongates towards the replication fork is.

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Leading

Lagging

Okazaki

Primer

The number of nucleotides in the DNA of a typical human chromosome is about

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10 Million

40 million

80 million

140 million

Repeating units of DNA are called.

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Histones

Nucleosides

Nucleotides

Amino acids

Innate behavior is all except;

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Coded in DNA

Modified in individuals life span

Modified with species evolution

Programmed responses to external stimuli

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

Which of the following is a 'start' codon

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AUG

UAG

UAA

UGA

A central role for chromosomes in heredity was first suggested in 1900 by.

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Karl correns

W. Sutton

F. Griffiths

T.H.Morgan

A gene with initiation codon, which encodes the amino acid methionine is.

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UAA

UAG

AUG

UGG

In 1882, chromosomes were first observed by.

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John Brown

T.H.Morgan

Walter fleming

Walther sutton

Chromosomal theory of inheritance was first formulated by.

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Karl Correns

T.H.Morgan

W. Sutton

Carvin Bridges

The genetic code for glycine is.

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UAG

GAU

GUA

GGU

The copping of mRNA from DNA is called.

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Translation

Transduction

Transcription

Transformation

How many million nucleotides are in DNA of typical human chromosome

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140

160

180

200

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

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Wild types

Changer

Mutants

Transmutants

Human cells contain types of tRNA molecules.

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20

45

195

300

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