Question # 1

Human cells contain types of tRNA molecules.

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20

45

195

300

In 1882, chromosomes were first observed by.

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John Brown

T.H.Morgan

Walter fleming

Walther sutton

Which of the following is a 'start' codon

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AUG

UAG

UAA

UGA

Amino acid attachment site of tRNA is.

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G-end

2' -end

3'- end

5' -end

The base pairs in human genome are.

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Two billion

Three billion

Four billion

Five billion

Which of the following is a non sense codon.

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UGA

UGG

AUG

AUC

Human cells have 46 chromosomes consisting of

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20 pairs

21 pairs

22 pairs

23 pairs

Every gene starts with initiation codon AUG which encodes for the amino acid.

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Lysine

Serine

Proline

Methionine

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

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Template strand

Antisense strand

Lagging strand

coding strand

A combination of three nucleotides of DNA that specifies as amio acid is called.

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Cistron

Anticodon

Genetic code

Entron

DNA was discovered in

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1869

1864

1961

1972

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

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

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UAA

UAG

AUG

UGG

Histones are positively charged due to an abundance of the basic amino acids

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Arginine

Lysine

Both a & c

Alanine

Genetic code is a combination of 3 nucleotides in DNA which specify a particular

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Amino acid

Fatty acid

Vitamin

Steriod

How many million nucleotides are in DNA of typical human chromosome

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140

160

180

200

The stand which elongates towards the replication fork is.

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Leading

Lagging

Okazaki

Primer

RNA polymerase II synthesize.

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mRNA

tRNA

rRNA

cDNA

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