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A dihybrid condition is:

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Important Questions on Principles of Inheritance and Variation

MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
What is the possible genotypic ratio in F2 generation if a plant producing red flowers RR is crossed with another plant of the same species that produces white flowers rr?
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
An allele that mask the effect of another allele is called
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
In human beings, brown eye (B) is dominant over blue eye (b). A brown-eyed couple has a blue-eyed child. What are the possible genotypes of the couple?
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
The maximum number of different gametes of the pollens produced by a tall pea plant with round, yellow, seeds of the genotype TtRrYY, if the three loci are unlinked, would be
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Monohybrid cross is a cross of ________.
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Some of F2 progeny are formed during dihybrid cross between round and yellow o↑ and wrinkled and green +∘ pea plants. Their genotypes are:
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F1 plants were selfed the resulting genotypes were in the ratio
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
A homozygous tall pea plant is crossed with its homozygous recessive parent. Find out the genotypic and phenotypic ratio with the help of Punnet square method.
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
If F1 hybrid shows characters of both the parents, then it is due to
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Which among the following characters selected by Mendel in a pea plant is a recessive character?
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
A cross wạs carried out between two individuals, heterozygous for two pairs of genes. Assuming segregation and independent assortment, the number of different genotypes and phenotypes obtained respectively would be
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Alleles are:
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
How will you find that F1 Hybrid is homozygous or heterozygous? Explain it with suitable example.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes

A round seeded tall pea plant is crossed with round seeded dwarf plant and obtained progeny are with following phenotypes
3 - Tall, Round
3 - Dwarf, Round
1 - Tall, Wrinkled
1 - Dwarf, Wrinkled

The possible genotype of parents:

MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Identify which one of the following is a test cross.
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
According to Mendel, ........................ segregate and ..................... assort independently.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
A true breeding plant is:
EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Which of the following character is ignored or not noticed by Mendel in garden pea?
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
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.
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Who is known as the father of Genetics?