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प्रश्न
- A pure tall plant (TT) is crossed with a pure dwarf plant (tt). Draw Punnett squares to show
- F1, generation
- F2 generation.
- Give the phenotype of F2 generation.
- Give the phenotype and genotypic ratios of the F1 and F2 generations.
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उत्तर
- In the F2 generation, 75% of the plants will be tall, and 25% will be dwarf.
- F1 generation:
Phenotypic ratio: All tall plants
Genotypic ratio: All hybrids
F2 generation:
Phenotypic ratio: 3 : 1
Genotypic ratio: 1 : 2 : 1
संबंधित प्रश्न
The phenotypic ratio of incomplete dominance is ______.
A cross used to verify the unknown genotype of the F1 hybrid is a ______.
Give the significance of mutation.
Mutation alerts the hereditary material. Give reasons.
Differentiate Between Homozygous shows Heterozygous.
Explain the Term Mutation.
Give Technical Term:
Cell organelle directly involved in genetics.
Give Technical Term:
A single egg was fertilized by a single sperm. But twins derived from that egg were born. What is the name of such type of twins?
Complete the following sentence with appropriate word:
In mammals, the female is homozygous while the male is _________.
Complete the following sentence with appropriate word:
The dissimilar pairs of genes present in an individual are known as _______________.
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:
Genes are responsible for genetic characters.
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.
What is allelomorph?
State whether the following is true or false.
A recessive factor is altered by the presence of a dominant factor.
Using ______, the production of gametes by the parents, the formation of zygotes, the F1 and F2 plants can be understood.
A normal visioned woman whose father is colourblind married a normal visioned man. What are the probabilities of her sons or daughters to be colourblind? Explain with the help of Punnett square.
Parents of blood group i and AB cannot have a child of blood group AB because ______.
Which one of the following character is recessive in case of a pea plant?
