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प्रश्न
Explain the Term Mutation.
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उत्तर
Mutation: Any change brought about into the genetic composition through external or internal factors.
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संबंधित प्रश्न
Choose the correct answer:
Mendel was born in __________
Mutation alerts the hereditary material. Give reasons.
A pure tall plant (TT) is crossed with a pure dwarf plant (tt).
Draw Punnet squares to show
(1) F2 generation
(2) F2 generation.
Give the Phenotype of the F2 generation.
Explain the Term Variation.
Explain the Term Genotype.
Give Technical Term:
Cell organelle directly involved in genetics.
Complete the following sentence with appropriate word:
Upon _______the diploid condition is restored.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Most genetic diseases in man are recessive in character.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A female is responsible for the sex of the progeny.
Explain a dihybrid cross with suitable example and checker board method.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
Mendel was successful in his experiments because:
A typical dihybrid cross is carried outbetween true breeding plant with yellowround seeds and a true breeding plant withgreen wrinkled seeds. With appropriatesymbol write the genotypes of —
- Homozygous dominant and recessive parents.
- Gametes produced by both the parents.
- Gametes produced by the F, hybrid. (3)
In which region of chromosomes does crossing over take place?
