If a colorblind woman marries a normal visioned man, their sons will be:

One half normal and one half colorblind

Three fourth colour blind and one fourth normal

A testcross is done to find out

The genotype of an individual by examining the phenotypes of its offsprings from a particular mating

The genotype of an individual for testing for its DNA content

To identify the genotype of recessive parent

Whether two species can interbreed

Identify the incorrect statement from the following.

When Morgan crossed wild type Drosophila for eye colour and body colour with mutated form like white eye and yellow body the recombination was more

When genes are tightly packed on the chromosomes, recombinations are almost nil

Incomplete dominance expression is also noticed in garden pea

Multiple alleles for a character in a population found on the same locus on homologous chromosomes

E M B I B E

Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 54

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A gene showing codominance has

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Important Questions on Principles of Inheritance and Variation

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 55

Linkage is a tendency of alleles of different genes to assort together in

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 56

A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by :-

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 62

Heterozygous tall and red flowered pea plants were selfed and total 2000 seeds are collected. What is the total number of seeds for both heterozygous traits?

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 68

The term "linkage" was coined by :

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 70

In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 73

In man, gene producing the disease phenylketonuria also produces a number of abnormal phenotypic traits, which are collectively syndrome. This gene results mental retardation, widely spaced incisors, pigmented patches on the skin and excessive sweating such types of genes are called

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 76

A woman with two genes for haemophilia and a gene for colour blindness on one of the 'X' chromosomes marries a normal man. How will the progeny be?

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Biology Crash Course NEET>Chapter 27 - Principles of Inheritance and Variation>Level 2>Q 78

If the foetus is