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प्रश्न
Give the Phenotypic and Genotypic ratio of the F2 and F2 generation.
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उत्तर
F1: Phenotypic ratio—all tall plants.
Genotypic ratio—all hybrids.
F2: Phenotypic ratio—3:1
Genotypic ratio—1:2:1
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संबंधित प्रश्न
Choose the correct answer:
Mendel was born in __________
Give the significance of mutation.
Differentiate Between Homozygous shows Heterozygous.
Name the following:
The genetic composition of an organism.
Give Technical Term:
The individuals having dissimilar pairs of genes.
Complete the following sentence with appropriate word:
______is the hereditary unit.
Complete the following sentence with appropriate word:
The dissimilar pairs of genes present in an individual are known as _______________.
Write the functional activity of the following structure:
Autosomes
Give any two points of difference between homozygous and heterozygous.
A recessive factor is altered by the presence of a dominant factor.
The appearance of new combinations in the F2 generation of a dihybrid cross proves the law of ______.
Alleles refer to ____________.
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 %.)
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
Match the items given in Column I with those listed in Column II. Choose the answer with correct combination of alphabets of the two columns.
| Column I | Column II |
| A. Monohybrid cross | 1. T and t |
| B. Test cross | 2. TT |
| C. Alleles | 3. TT × tt |
| D. Homozygous tall | 4. tt |
| 5. Tt × tt |
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
