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प्रश्न
Explain the term Alleles.
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उत्तर
Alleles: Alleles are the alternative forms of the same gene. For example, tallness and dwarfism are the two alternative forms of a gene for height and are called alleles. Similarly, attached ear lobes and free ear lobes are alleles for the type of ear lobes.
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संबंधित प्रश्न
A heterozygous tall plant of pea is crossed with a dwarf plant of pea.
Calculate the phenotypic ratio of the progeny.
Mutation alerts the hereditary material. Give reasons.
Differentiate between genotype and phenotype.
State Mendel’s Law of Dominance.
- 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.
Explain the Term Variation.
Give Technical Term:
A virus with DNA as heredity material.
Give Technical Term:
Transmits characteristics from parents to offsprings.
Give Technical Term:
The individuals having dissimilar pairs of genes.
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 _________.
Choose the Odd One Out
Multiple choice question.
A cross between an individual with an unknown genotype for a trait with recessive plant for that trait is _______.
Explain a dihybrid cross with suitable example and checker board method.
Which one of the following is back cross?
What is allelomorph?
State whether the following is true or false.
Hybrid is an offspring from a cross between genetically different parents.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
