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A pure tall pea plant is crossed with a pure dwarf pea
plant. The progeny is self pollinated. The ratio of
pure breeding tall pea plants to true breeding dwarf
pea plants shall be
- a)2:1
- b)1:1
- c)3:1
- d)1:2
Correct answer is option 'B'. Can you explain this answer?
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Explanation:
When a pure tall pea plant is crossed with a pure dwarf pea plant, the resulting progeny are all heterozygous tall plants. This is because the tallness trait is dominant over the dwarfness trait.
When the progeny plants are self-pollinated, the possible combinations of alleles for the height trait are TT (pure tall), Tt (tall), and tt (pure dwarf).
Ratio of pure breeding tall pea plants to true breeding dwarf pea plants:
To determine the ratio of pure breeding tall pea plants to true breeding dwarf pea plants, we need to consider the possible combinations of alleles in the progeny.
1. Pure breeding tall pea plants (TT): There is only one possible genotype for pure breeding tall plants, which is TT.
2. True breeding dwarf pea plants (tt): There is only one possible genotype for true breeding dwarf plants, which is tt.
Therefore, the ratio of pure breeding tall plants to true breeding dwarf plants is 1:1 (option B).
It is important to note that the ratio of 1:1 assumes that the pure breeding tall plants and true breeding dwarf plants are the only possible genotypes for the height trait. If there were any other genotypes that could result in different heights or if there were any other factors influencing the height trait, the ratio could be different. However, based on the information provided in the question, the ratio is 1:1.
When a pure tall pea plant is crossed with a pure dwarf pea plant, the resulting progeny are all heterozygous tall plants. This is because the tallness trait is dominant over the dwarfness trait.
When the progeny plants are self-pollinated, the possible combinations of alleles for the height trait are TT (pure tall), Tt (tall), and tt (pure dwarf).
Ratio of pure breeding tall pea plants to true breeding dwarf pea plants:
To determine the ratio of pure breeding tall pea plants to true breeding dwarf pea plants, we need to consider the possible combinations of alleles in the progeny.
1. Pure breeding tall pea plants (TT): There is only one possible genotype for pure breeding tall plants, which is TT.
2. True breeding dwarf pea plants (tt): There is only one possible genotype for true breeding dwarf plants, which is tt.
Therefore, the ratio of pure breeding tall plants to true breeding dwarf plants is 1:1 (option B).
It is important to note that the ratio of 1:1 assumes that the pure breeding tall plants and true breeding dwarf plants are the only possible genotypes for the height trait. If there were any other genotypes that could result in different heights or if there were any other factors influencing the height trait, the ratio could be different. However, based on the information provided in the question, the ratio is 1:1.
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A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer?
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A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer?.
A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A pure tall pea plant is crossed with a pure dwarf peaplant. The progeny is self pollinated. The ratio ofpure breeding tall pea plants to true breeding dwarfpea plants shall bea)2:1b)1:1c)3:1d)1:2Correct answer is option 'B'. Can you explain this answer?.
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