Q. Diethyl stilbestrol (DES), a synthetic estrogen causes

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Q. Bar eye character of Drosophila is due to

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Q. Transmission of a gene from male parent to female child to male grand child is known as

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Q. Exchange of segments between non homologous chromosomes is best known as

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Q. The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as

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Q. How many chromosomes are there in Caernorhabditis elegans?

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Q. If two genes show 50% recombination

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Q. Which of the following denotes a pair of contrasting characters?

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Q. A map of chromosomes that utilizes cloned and sequenced DNA fragments rather than genetic markers is known as

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Q. 5-fluoro orotic acid inhibits the growth if one of the following marker is present in the yeast. That is

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Q. Which of the following promoters is repressed in presence of glucose?

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Q. Which of the following can be used for reducing the size of gene inserts containing introns?

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Q. Bovine papilloma virus has a circular double stranded DNA genome of about

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Q. Retroviruses consist of

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Q. Which of the following is/are commonly used promoter of S. cerevisiae?

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Q. Maximum amount of foreign DNA introduced into SV 40 viruses is

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Q. Recombinant SV40 viruses introduce the foreign DNA into cells

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Q. Which one of the following is the most stable vector?

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Q. SV 40 vectors, in which early region replacements are carried out, require

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Q. Cos cell line is

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