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Reciprocal cross allows to study the inheritance pattern in offsprings depending on the parental sex.

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Important Questions on Classical Genetics

EASY
Biology>Genetics>Classical Genetics>Different Types of Cross
A true breeding plant is:
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Biology>Genetics>Classical Genetics>Different Types of Cross
Suppose the three non-linked autosomal genes A, B and C control coat colour in an animal and the dominants alleles A, B and C are responsible for dark colour and the recessive alleles a, b and c are responsible for light colour. If a cross between a male of AABBCC genotype and a female of aabbcc genotype produces 640 offsprings in the F2-generation, how many of them are likely to be of the parental genotype?
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Biology>Genetics>Classical Genetics>Different Types of Cross

Give appropriate biological or technical terms for the following:

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

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Biology>Genetics>Classical Genetics>Different Types of Cross
Explain the following term:
Phenotype.
EASY
Biology>Genetics>Classical Genetics>Different Types of Cross
Which ONE of the following statements is INCORRECT?
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Biology>Genetics>Classical Genetics>Different Types of Cross
Write any two differences between genotype and phenotype.
HARD
Biology>Genetics>Classical Genetics>Different Types of Cross
The following question has four choices. Choose the best option.

Study the given monohybrid cross

A test cross for this F1 will be:

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Biology>Genetics>Classical Genetics>Different Types of Cross
Explain the terms phenotype and genotype.
HARD
Biology>Genetics>Classical Genetics>Different Types of Cross
A plant with genotype AABBCC is crossed with another plant with aabbcc genotype. How many different genotypes of pollens is possible in an F1 plant if these three loci follow an independent assortment?
EASY
Biology>Genetics>Classical Genetics>Different Types of Cross
How many types of gametes can be produced by individual with the genotype AAbb?
HARD
Biology>Genetics>Classical Genetics>Different Types of Cross
How will you find that F1 Hybrid is homozygous or heterozygous? Explain it with suitable example.
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Biology>Genetics>Classical Genetics>Different Types of Cross

Match the following lists:

  List - I   List - II
(A) Back cross   It is the genetic make up of an individual.
(B) Test cross (II) An individual is having two different alleles for a single character. Consequently, it will produce two different types of gametes with reference to a gene.
(C) Heterozygote (III) An individual is having two similar or identical alleles for a single character. Hence, it will produce only one kind of gametes with reference to a gene.
(D) Homozygote (IV) If the F1 progeny are mated back to one of their parents.
    (V) The cross between F1 progeny (or heterozygotes) and their recessive homozygous parent.

The correct match is:

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Biology>Genetics>Classical Genetics>Different Types of Cross
Identify which one of the following is a test cross.
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Biology>Genetics>Classical Genetics>Different Types of Cross
What is reciprocal cross?
EASY
Biology>Genetics>Classical Genetics>Different Types of Cross
What is the genetic nature of wrinkled phenotype of pea seeds?
MEDIUM
Biology>Genetics>Classical Genetics>Different Types of Cross
Define test cross and draw diagram.
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Biology>Genetics>Classical Genetics>Different Types of Cross
What is test cross? Show phenotypic ratio 1:1 in a monohybrid test cross through punnett square.
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Biology>Genetics>Classical Genetics>Different Types of Cross
Assertion (A): In human beings, the sex of the offspring depends on the type of sperm that fertilizes the ovum
Reason (R): Human males are heterogametic
The correct option among the following is
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Biology>Genetics>Classical Genetics>Different Types of Cross
If the gene pool of the locus X in the human genome is 4, then what would be the highest possible number of genotypes in a large population?
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Biology>Genetics>Classical Genetics>Different Types of Cross
The minimum number of plants to be screened to obtain a plant of the genotype AabbCcDd from a cross between plants of genotypes AaBbCcDd and AABbCCDd is: