Grain colour in wheat is determined by three pairs of polygene. Following the cross AABBCC (dark colour) x aabbcc (light colour), in F2-generation what proportion of the progeny is likely to resemble either parent
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Which of the followings is a well known autosomal abnormality at birth? |
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The genotype of a plant showing the dominant phenotype can be determined by |
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Mendel's principle of segregation means that the germ cells always receive |
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What is the composite display (paired and arranged according to size) of all the chromosomes of an organism called? |
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Mating of an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called |
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In blood group typing in human, if an allele contributed by one parent is IA and an allele contributed by the other parent is i, the resulting blood group of the offspring will be |
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Phenotype of an organism is the result of |
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Excessive growth of hair on the pinna is a feature found only in males because |
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The genotype is called a ______ when a person is heterozygous at two different loci. |
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Individuals with Down syndrome have ______ copies of chromosome 21. |
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