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प्रश्न
Define the following term:
Gene
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उत्तर
Genes are specific sequences of nucleotides on a chromosome that encode particular proteins which are expressed in the form of some particular feature of the body. They are the units of heredity which are transferred from parents to offspring and are responsible for some specific characteristics of the offspring.
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संबंधित प्रश्न
Differentiate Between Homozygous shows Heterozygous.
- 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 Heredity.
Explain the Term Dominance.
Give Technical Term:
Differences occurring within offsprings of the same progeny.
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:
Mutation can be brought about artificially.
Multiple Choice Question
Genetics is a branch of biology dealing with:
Multiple choice question.
In a dihybrid cross, F2 generation offsprings show four different phenotypes while the genotypes are _______.
The word chromosome was coined by
What is allelomorph?
The percentage of each gamete out of four different types of gametes produced by the F1 dihybrid will be ________.
Two alternative forms of genes or alleles are located on ______.
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 |
An indvidual of genotype, Aa Bb Cc Dd is used in test cross. How many different phenotypes can appear in this progeny?
A pair of corresponding chromosomes of the same shape, size and one from each parent is called ______.
