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Question
Why did Mendel choose pea plant for his experiments?
Solution
Mendel chose the pea plant for his experiments because of the following reasons :
- This plant can be easily grown.
- This plant has a short life cycle and produces a large number of seeds.
- It can self-fertilize.
- It has easily distinguishable contrasting traits.
- Because of its large flower, it can be easily crossed in a controllable manner.
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RELATED QUESTIONS
Mendel published his work on inheritance of characters in 1865, but it remained unrecognised till 1900. Give three reasons for the delay in accepting his work.
Suppose you are given two pairs of contrasting characters: Seed colour → yellow and green , seed coat → round and wrinkled.
Fill in the following table to show that F2 generation according to the principle of independant assortment as given by Mendel.
| Selfing among hybrids of F1 | RY | Ry | rY | ry |
| RY | ||||
| Ry | ||||
| rY | ||||
| Ry | ||||
| F2 generation |
Why law of segregation is also called the law of purity of gametes?
Dominant allele refers to ______.
Hybridization between Tt × tt gives rise to the progeny of ratio ______.
Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new combination from the following:
- Round, yellow
- Round, green
- Wrinkled, yellow
- Wrinkled, green
Read the following and answer from given below:
According to Mendel, one gene controls the expression of one character only. The ability of a gene to have multiple phenotypic effects because it influences a number of characters are an exception. The gene has multiple phenotypic effects because its ability to control two or more characters can be seen in cotton. In cotton, a gene for the lint also influences the height of the plant, size of the ball, number of ovules, and viability of seeds.
Genes with multiple phenotypic effects are known as ______
When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called?
If a cross between two individuals produces offspring with 50% dominant character (A) and 50% recessive character (a) then the Genotypes of parents are:
