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What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?
- a)Tall plants
- b)Dwarf plants
- c)Intermediate plants
- d)Mixed population of tall and dwarf plants
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
What should be the phenotype of the F1 progeny produced by a cross bet...
Explanation:
The phenotype of an organism is determined by its genetic makeup or genotype. In the case of the garden pea plants, the tall and dwarf traits are controlled by a single gene with two alleles. The tall allele (T) is dominant over the dwarf allele (t).
When true-breeding tall plants are crossed with true-breeding dwarf plants, both parents are homozygous for their respective traits. The tall plants have a genotype of TT, and the dwarf plants have a genotype of tt.
Punnett Square:
To determine the phenotype of the F1 progeny, we can use a Punnett square. The Punnett square is a diagram that helps to predict the genotypes and phenotypes of offspring in a genetic cross.
The Punnett square for the cross between a tall plant (TT) and a dwarf plant (tt) would look like this:
| | T | T |
|------|-----|-----|
| t | Tt | Tt |
From the Punnett square, we can see that all of the F1 progeny will have a genotype of Tt.
Phenotype:
Since the tall allele is dominant over the dwarf allele, the presence of at least one tall allele (T) will determine the phenotype of the F1 plants. Therefore, the phenotype of the F1 progeny produced by this cross will be tall plants.
This is because the genotype Tt has a dominant allele (T) and a recessive allele (t), and the dominant allele will mask the expression of the recessive allele. As a result, all of the F1 plants will display the tall phenotype.
Conclusion:
The F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants will have a phenotype of tall plants. This is because the tall allele (T) is dominant over the dwarf allele (t), and the presence of at least one tall allele will determine the phenotype.
The phenotype of an organism is determined by its genetic makeup or genotype. In the case of the garden pea plants, the tall and dwarf traits are controlled by a single gene with two alleles. The tall allele (T) is dominant over the dwarf allele (t).
When true-breeding tall plants are crossed with true-breeding dwarf plants, both parents are homozygous for their respective traits. The tall plants have a genotype of TT, and the dwarf plants have a genotype of tt.
Punnett Square:
To determine the phenotype of the F1 progeny, we can use a Punnett square. The Punnett square is a diagram that helps to predict the genotypes and phenotypes of offspring in a genetic cross.
The Punnett square for the cross between a tall plant (TT) and a dwarf plant (tt) would look like this:
| | T | T |
|------|-----|-----|
| t | Tt | Tt |
From the Punnett square, we can see that all of the F1 progeny will have a genotype of Tt.
Phenotype:
Since the tall allele is dominant over the dwarf allele, the presence of at least one tall allele (T) will determine the phenotype of the F1 plants. Therefore, the phenotype of the F1 progeny produced by this cross will be tall plants.
This is because the genotype Tt has a dominant allele (T) and a recessive allele (t), and the dominant allele will mask the expression of the recessive allele. As a result, all of the F1 plants will display the tall phenotype.
Conclusion:
The F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants will have a phenotype of tall plants. This is because the tall allele (T) is dominant over the dwarf allele (t), and the presence of at least one tall allele will determine the phenotype.
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Community Answer
What should be the phenotype of the F1 progeny produced by a cross bet...
Tall plants are dominant over dwarf plants. Being true-breeding parents, the offsprings will all be heterozygous. Moreover, hence phenotypically, all of them will be tall.
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What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer?
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What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer?.
What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What should be the phenotype of the F1 progeny produced by a cross between tall and dwarf true-breeding garden pea plants?a)Tall plantsb)Dwarf plantsc)Intermediate plantsd)Mixed population of tall and dwarf plantsCorrect answer is option 'A'. Can you explain this answer?.
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