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प्रश्न
A person has to perform crosses for the purpose of studying inheritance of a few traits/characters. What should be the criteria for selecting the organisms?
उत्तर
Criteria for selecting the organism are:
- Shorter life span
- To produce large number of progeny
- Clear differentiation of sex/trait
- Many type of hereditary variations
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संबंधित प्रश्न
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
State Mendel’s Law of Dominance.
Choose the correct answer:
Mendel conducted his hybridization experiments on _______
Choose the correct answer:
The contrasting characters used by Mendel are called _____
Explain Mendel’s Monohybrid cross. Give an example.
Define Mendel’s law of segregation.
Complete the following sentence with appropriate word:
___________ is the Father of Genetics.
What is the probability of production of dwarf offsprings in a cross between two heterozygous tall pea plants?
Read the following and answer from given below:
Prashant wanted to find the genotype of a pea plant bearing purple coloured flowers in his kitchen garden. For this, he crossed purple-flowered plants with white-flowered plants. As a result, all plants which were produced had purple flowers only. Upon selfing these plants, 75 purple flower plants and 25 white flowers plants were produced. Now, he can determine the genotype of a purple-flowered plant by crossing it with a white-flowered plant.
In white-flowered plants, the allele is expressed in ______
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
When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called?
