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In the phenotypic ratio 9:3:3:1, 9 stands for

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Important Questions on Genetics

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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 32
Identify the combination that is not possible.
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 33
Which of the following represents recombination with respect to both the traits?
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 34
Which of the following is the characteristic of a pleiotropic gene?
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 35
How many autosomes are found in human ovum?
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 36
Which among the combinations represents phenotypically similar, but genotypically different plants?
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 37
When 480 plants are produced in the F2 generation of dihybrid cross made with pure breeding plants, the total number of plants with parental combinations obtained is
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 38
Red (RR) flower plant is crossed with white (rr), all the offspring were pink, this indicates that R gene is
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10th CBSE
IMPORTANT
Pearson Foundation Series Biology>Chapter 9 - Genetics>PRACTICE QUESTIONS>Q 39
Two snapdragon plants with pink flower were hybridized. The F1 plants produced red, pink, and white flowers in the proportion of 1 red, 2 pink, and 1 white. What could be the genotype of the two plants used for hybridization? (Red flower colour-RR white-rr)