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Earn 100

Mention the reasons of Mendel's success.

Important Questions on Principles of Inheritance and Variation

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
If F1 hybrid shows characters of both the parents, then it is due to
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
The allele for black hair (B) is dominant over brown hair (b) and the allele for a brown eye (E) is dominant over blue eye e. Out of the offsprings obtained upon mating a black-haired and brown-eyed individual (BbEe) with a brown-haired and brown-eyed individual bbEE, the ratio of brown-haired and brown-eyed individuals to black-haired and brown-eyed individuals is
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Monohybrid cross is a cross of ________.
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation

Give appropriate biological or technical terms for the following:

The condition in which a pair of chromosomes carry similar alleles of a particular character.

MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
What is incomplete dominance? Explain it with reference to flower colour in snapdragon.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation

Identify the scientists who rediscovered the Mendel's result on the inheritance of characters.

A) de Vries
B) Morgan
C) von Tschermak
D) Sutton

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
The two alleles that determine the blood group AB of an individual are located on
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Morgan's experiments were on
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
An individual with genotype AaBbCcddEe is crossed with another individual with genotype AabbCcDdEe. Assuming Mendelian pattern of inheritance, predict the proportion of aabbccddee among the progeny of this cross?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Which ONE of the following statements is INCORRECT?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation

Write the difference between Linkage and crossing over.

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Identify the behavior of genes among the following.
A) Segregate at gamete formation, only one of each pair is transmitted to a gamete
B) Independent pairs segregate independently
C) Genes will not be modified at any time
D) Starch synthesis in pea seeds is not controlled by one gene
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation

Explain the following term:

Allele.

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Which among the following characters selected by Mendel in a pea plant is a recessive character?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
How many pairs of contrasting characters were studied by Mendel?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Why is a recessive allele unable to express itself in the heterozygous state?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Genes which code for a pair of contrasting traits are known as
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Alleles are:
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
State and explain Mendel's law of segregation with the help of a suitable cross.
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Heredity and Variation
Choose the correct statement
I) Alleles are unable to blend with other.
II) Genes are units of inheritance and alleles are slightly different forms of the same genes.
III) Mendel laws could be able to provide physical proof for the existence of genes (factors).
IV) Genes occurs in pairs and one pair segregate independently of another pair.