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In complementary genes, the dihybrid ratio of  9:3: 3: 1 is modified to

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Important Questions on Genetics

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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 26
Number of genotypes found in F2 progeny of a dihybrid cross is
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 27
Heterozygous tall (Tt) is crossed with homozygous tall (TT). Percentage of heterozygous tall in the progeny would be
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 28
Pleiotropic effect is found in
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 29
Tt×tt is
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 30
In sickle cell anaemia, there is change in amino acid in β chain at position
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 31
How many types of gametes are formed by Pea plant having YYRRtt genotype
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 32
Blood group of a couple are AB and O. The possible blood group of children would be
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 7 - Genetics>EXERCISE>Q 33
In Mirabilis jalapa, RR, Rr and rr determine red, pink and white colour respectively. When F1 hybrid of RR and rr was crossed with dominant parent, the resulting ratio will be