Biology - Mock Test 272

Question 2711

The first stage of development in which a cavity appears is the?

A) Neurula B) Morula C) Gastrula D) Balastula

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Question 2712

The sequence of 3 bases on tRNA which is complementary to condon of mRNA is called?

A) Gene B) Anticodon C) Code D) Codon

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Question 2713

In humans the number of tetrads formed during mitosis is?

A) 23 B) 46 C) 0 D) 4

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Question 2714

Which one of the following syndrome is the result of meiotic non dysjunction?

A) Klinefelters syndrome B) Turners syndrome C) Downs syndrome D) All of these

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Question 2715

Which one of the following stage preceeds mitosis during cell cycle?

A) G1 phase B) S phase C) G2 phase D) M phase

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Question 2716

Genes will not be found in gene pairs in the?

A) Muscle cell of worm B) Uterine cells of dog C) Sperm cells of frog D) Guard cells of leaf

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Question 2717

A genome is?

A) Appearance of an individual B) Genetic basis of few characters C) Full set of genes of an individual D) All of these

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Question 2718

The one which can break open a plasmid ring is?

A) Ligase enzyme B) Primase enzyme C) Restriction endonuclease D) ATP-ase enzyme

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Question 2719

The discease in which transmembrane carrier for the chloride ion is not produced is?

A) Hyperchloesterolemia B) Cystic fibrosis C) Severe combined immunodeficiency syndrome D) AIDS

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Question 2720

According to Lamarch evolution occurred as the result of?

A) Natural selection B) The theory of recapitulation C) Inheritance of acquired characters D) Over production

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