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प्रश्न
Complete the following sentence with appropriate word:
The small differences among individuals are called ________.
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उत्तर
The small differences among individuals are called Variations.
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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.
Which phoenomenon gives 2 : 1 ratio instead of 3 : 1 ratio? Describe with graphical representation.
Give the significance of mutation.
What is crossing-over? What are the factors affecting it?
Differentiate between genotype and phenotype.
State Mendel’s Law of Dominance.
Explain the Term Heredity.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
DNA has a double-helical structure.
Choose the Odd One Out
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.
Hybrid is an offspring from a cross between genetically different parents.
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 %.)
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 ______.
Define the following term:
Gene
