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प्रश्न
Explain the Term Variation.
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उत्तर
Variation: Occurrence of differences in the progeny of the same parents and individuals of the same species.
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संबंधित प्रश्न
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
Mutation alerts the hereditary material. Give reasons.
Explain the Term Crossing-over.
Explain the term Alleles.
Name the following:
The genetic composition of an organism.
Give Technical Term:
Cell organelle directly involved in genetics.
Complete the following sentence with appropriate word:
The physical expression of genes is called _________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Mendel experimented upon plants of Oryza sativa.
Multiple Choice Question
When an individual has both the genes of a contrasting character, it is said to be:
Multiple Choice Question
A cross was made between tall and dwarf plants. In F1 generation all plants were tall, when the F1 plants were selfed, the tall and dwarf plants appeared in a 3 : 1 ratio in the F2 generation. This phenomenon is known as:
Enlist dominant and recessive characters in pea plant with respect to the position of flower, colour of seed and colour of a pod in tabulated form.
A recessive factor is altered by the presence of a dominant factor.
Identify the genotype of a round seeded tall plant which when crossed with a plant of similar genotype produces the following percentage of phenotypes:
(tall round = 56.25 %, tall wrinkled = 18.75 %, dwarf round = 18.75 %, dwarf wrinkled = 6.25 %.)
Which one of the following genotype will yield only one type of gamete?
Two alternative forms of genes or alleles are located on ______.
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
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)
Define the following term:
Gene
