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Question
Explain Mendel’s Monohybrid cross. Give an example.
Solution
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RELATED QUESTIONS
Which one of the following is the phenotypic monohybrid ratio in F2 generation?
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
What is the phenotype and genotype of the F1 generation if a homozygous tall plant is crossed with a homozygous dwarf plant?
Define the following:
Phenotype
Define the following:
Heterozygous
Choose the correct answer:
A cross where two pairs of alleles are considered is a ____________
If a pure tall plant is crossed with a pure dwarf plant, then offspring will be ______.
Explain the following term : Pedigree chart
Describe the cross between a homozygous tall, round-seeded pea plant and a dwarf, wrinkled-seeded pea plant. What will be the types of progeny in the F2 generation of this cross and in what proportion will it be?
Name and state the law which is explained by this example.
Why did Mendel select pea plants for his experiment?
First geneticist/father of genetics was ______.
What is the probability of production of dwarf offsprings in a cross between two heterozygous tall pea plants?
What does the progeny of a tall plant with round seeds and a short plant with wrinkled seeds look like?
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.
To determine the genotype of a purple-flowered plant, Prashant crossed this plant with a white-flowered plant. This cross represents a ______
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.
The character i.e., the purple colour of the flowers that appeared in the first filial generation is called ______
In the following crosses write the characteristics of the progeny
| Cross | Progeny |
| (a) RR YY × RR YY | __________________ |
| Round, yellow Round, yellow | __________________ |
| (b) Rr Yy × Rr Yy | __________________ |
| Round, yellow Round, yellow | __________________ |
| (c) rr yy × rr yy | __________________ |
| wrinkled, green wrinkled, green | __________________ |
| (d) RR YY × rr yy | __________________ |
| Round, yellow wrinkled green | __________________ |
Enlist the steps of controlled cross pollination. Would emasculation be needed in a cucurbit plant? Give reasons for your answer.
A green stemmed tomato plant denoted by (GG) is crossed with a tomato plant with purple stem denoted by (gg).
- What colour of the stem would you expect in their F1 progeny?
- In what ratio would you find the green and purple coloured stem in plants of F2 progeny?
- What conclusion can be drawn for the above observations?
The maternal grandfather of a boy is colorblind, but his maternal grandmother is normal. The father of the boy is also normal. What is the probability of this boy being colorblind?
