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The genotypic and phenotypic ratio is same in

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Important Questions on Principles of Inheritance and Variation

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KCET UG
IMPORTANT
Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 16
If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The
genotypic constitution of the parents having red coloured flowers will be :-
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 18
A normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 19
A haemophilic man marries a normal woman. Their offspring will be:
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KCET UG
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 20
If enough crosses are made between male flies of the genotype 'Aa' and the female flies of the genotype 'aa' to produce about 1000 offsprings. Which one of the following is the most likely distribution of genotypes in the offsprings?
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 21
In a monohybrid cross, 120 plants are obtained. What is the ratio of homozygous and heterozygous?
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 23
A diseased man marries a normal woman. They have three daughters and five sons. All the daughters were diseased and sons were normal. What is the gene of this disease?
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KCET UG
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 24
A plant of F1 generation with genotype "AABbCC". On selfing of this plant what is the phenotypic ratio in F2 generation:
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Biology Crash Course KCET UG>Chapter 27 - Principles of Inheritance and Variation>Exercise 1>Q 25

For ABO blood group system in human population, the ratio of different genotype and phenotype is