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Which of the following statements is/are correct about the first generation purebred cross between tall and dwarf plants?
A. Only tall plants were produced in the first generation.
B. Tall and dwarf plants were produced in the ratio 3 : 1.
C. Only dwarf plants were produced in the F1.
- a)A and C
- b)Only A
- c)B and C
- d)Only B
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements is/are correct about the first gene...
In a cross of parents that are pure for contrasting traits, only one form of the trait will appear in the next generation. Offspring that are hybrid for a trait will have only the dominant trait in the phenotype.
In a cross between a homozygous tall pea plant (TT) and dwarf pea plant (tt), the F1 generation - all tall pea plants (Tt) are formed.
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Which of the following statements is/are correct about the first gene...
Explanation:
First Generation Purebred Cross Between Tall and Dwarf Plants
- When tall and dwarf plants are crossed in the first generation, all the offspring will be tall.
- This is because the tall trait is dominant over the dwarf trait in this case.
- The genotype of the offspring in the first generation will be heterozygous (Tt) for the tall trait.
- The phenotype of these heterozygous plants will be tall due to the presence of the dominant tall allele.
- Therefore, only tall plants will be produced in the F1 generation of this cross.
Conclusion
- The correct statement about the first generation purebred cross between tall and dwarf plants is that only tall plants were produced in the F1 generation.
- The ratio of tall to dwarf plants in this case would be 4 : 0 (not 3 : 1) due to the dominance of the tall trait.
First Generation Purebred Cross Between Tall and Dwarf Plants
- When tall and dwarf plants are crossed in the first generation, all the offspring will be tall.
- This is because the tall trait is dominant over the dwarf trait in this case.
- The genotype of the offspring in the first generation will be heterozygous (Tt) for the tall trait.
- The phenotype of these heterozygous plants will be tall due to the presence of the dominant tall allele.
- Therefore, only tall plants will be produced in the F1 generation of this cross.
Conclusion
- The correct statement about the first generation purebred cross between tall and dwarf plants is that only tall plants were produced in the F1 generation.
- The ratio of tall to dwarf plants in this case would be 4 : 0 (not 3 : 1) due to the dominance of the tall trait.
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Which of the following statements is/are correct about the first generation purebred cross between tall and dwarf plants?A. Only tall plants were produced in the first generation.B. Tall and dwarf plants were produced in the ratio 3 : 1.C. Only dwarf plants were produced in the F1.a)A and Cb)Only Ac)B and Cd)Only BCorrect answer is option 'B'. Can you explain this answer?
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Which of the following statements is/are correct about the first generation purebred cross between tall and dwarf plants?A. Only tall plants were produced in the first generation.B. Tall and dwarf plants were produced in the ratio 3 : 1.C. Only dwarf plants were produced in the F1.a)A and Cb)Only Ac)B and Cd)Only BCorrect answer is option 'B'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is/are correct about the first generation purebred cross between tall and dwarf plants?A. Only tall plants were produced in the first generation.B. Tall and dwarf plants were produced in the ratio 3 : 1.C. Only dwarf plants were produced in the F1.a)A and Cb)Only Ac)B and Cd)Only BCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is/are correct about the first generation purebred cross between tall and dwarf plants?A. Only tall plants were produced in the first generation.B. Tall and dwarf plants were produced in the ratio 3 : 1.C. Only dwarf plants were produced in the F1.a)A and Cb)Only Ac)B and Cd)Only BCorrect answer is option 'B'. Can you explain this answer?.
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