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प्रश्न
Considering the relationship in the first pair, complete the second pair:
rr : Homozygous : : Rr : ....................
उत्तर
rr : Homozygous : : Rr : Heterozygous
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संबंधित प्रश्न
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.
The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratio as 1:2:1 unlike that the Mendel’s monohybrid F2 ratio. With the help of a suitable example, work out a cross and explain how it is possible.
Explain the following term : Homozygous
Long answer type question.
Explain with suitable example an independent assotrment.
Give an account of incomplete dominance with a suitable example.
In heterozygous condition, both the alleles are expressed in ______
One of the reasons why law of segregation of gametes is universally applicable, is ______.
Which one from those given below is the period for Mendel's hybridization experiments?
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
Which one of the following characters studied by Mendel in garden pea was found to be dominant?
Law of independent assortment can be explained with the help of ______.
Mendel’s law of independent assortment does not hold true for the genes that are located closely on ______.
The material used for conducting experiments on genetic traits by Mendel was ______.
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.
Which of the following cannot be derived from the crosses done by Prashant?
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:
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 ______
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
Assertion: Height in pea plants is controlled by the efficiency of enzymes and is thus genetically controlled.
Reason: Cellular DNA is the information source for making proteins in the cell.
In parents, mendelian factors occur in pairs, but they segregate during ______.
