Q. In an organism, the chromosome number is maintained constant because of

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Q. How many chromosomes are there in the budding yeast (S. cerevisiae)?

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Q. Which of the following is correct when a character shows continuous variation assuming a normal distribution?

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Q. Raphanobrassica is a classical example of

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Q. How does dosage compensation in Drosophila occur?

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Q. Hairy wing character of Drosophila is due to

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Q. A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as

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Q. A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of

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Q. Incase of inversion when the inverted segment of chromosome includes centromere, it is known as

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Q. An odd number of cross overs in inverted region will result into formation of a dicentric chromatid and acentric chromatid at anaphase I incase of

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Q. The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as

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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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