EASY
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From the given statements, find the correct option:
I. Test crosses are used to determine the unknown genotype of an organism within one breeding generation.
II. Test cross is a cross between F1 hybrid and dominant or recessive parents.
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Important Questions on Principles of Inheritance and Variation
MEDIUM
Write any two differences between genotype and phenotype.
EASY
Which ONE of the following statements is INCORRECT?
MEDIUM
Give appropriate biological or technical terms for the following:
The condition in which a pair of chromosomes carry similar alleles of a particular character.
EASY
A true breeding plant is:
MEDIUM
The minimum number of plants to be screened to obtain a plant of the genotype from a cross between plants of genotypes and is:
MEDIUM
Explain the following term:
Phenotype.
HARD
The following question has four choices. Choose the best option.
Study the given monohybrid cross
A test cross for this F1 will be:
MEDIUM
Explain the terms phenotype and genotype.
EASY
How many types of gametes can be produced by individual with the genotype AAbb?
MEDIUM
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
HARD
How will you find that F1 Hybrid is homozygous or heterozygous? Explain it with suitable example.
MEDIUM
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?
MEDIUM
Identify which one of the following is a test cross.
MEDIUM
What is reciprocal cross?
EASY
What is the genetic nature of wrinkled phenotype of pea seeds?
MEDIUM
Define test cross and draw diagram.
MEDIUM
What is test cross? Show phenotypic ratio 1:1 in a monohybrid test cross through punnett square.
MEDIUM
Suppose the three non-linked autosomal genes and control coat colour in an animal and the dominants alleles and are responsible for dark colour and the recessive alleles and are responsible for light colour. If a cross between a male of genotype and a female of genotype produces offsprings in the -generation, how many of them are likely to be of the parental genotype?
HARD
A plant with genotype AABBCC is crossed with another plant with aabbcc genotype. How many different genotypes of pollens is possible in an plant if these three loci follow an independent assortment?
MEDIUM
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 progeny are mated back to one of their parents. |
| (V) | The cross between progeny (or heterozygotes) and their recessive homozygous parent. |
The correct match is:
