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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:
- a)25% will be tall with red fruit
- b)50% will be tall with red fruit
- c)75% will be tall with red fruit
- d)All of the offspring will be tall with red fruits
Correct answer is option 'D'. Can you explain this answer?
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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallne...
The RRTT plant will produce only gametes with RT, and the rrtt plant will produce gametes with rt. The resulting F1 generation will all have the genotype RrTt and will exhibit the dominant traits for both characteristics: tallness and red fruit. Therefore, all offspring will be tall with red fruit.
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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallne...
Understanding the Genotypes
The genotypes of the plants involved in the cross are as follows:
- Plant 1 (RR TT): This plant has dominant traits for both characteristics—red fruit (R) and tallness (T).
- Plant 2 (rr tt): This plant has recessive traits for both characteristics—yellow fruit (r) and shortness (t).
Determining the Offspring Genotypes
When these two plants are crossed, we analyze the potential offspring:
- Red Fruit Trait:
- Plant 1 contributes R (dominant) and Plant 2 contributes r (recessive).
- All offspring will have Rr genotype, resulting in red fruit.
- Tallness Trait:
- Plant 1 contributes T (dominant) and Plant 2 contributes t (recessive).
- All offspring will have Tt genotype, resulting in tall plants.
Phenotypic Ratios of Offspring
From the cross, we can determine the phenotypic outcomes:
- All Offspring Characteristics:
- Since R is dominant over r, all offspring will exhibit red fruit.
- Since T is dominant over t, all offspring will be tall.
Conclusion
Thus, when a plant with genotype RRTT is crossed with a plant with genotype rrtt:
- Result: All offspring (100%) will exhibit red fruit and be tall.
Therefore, the correct answer is option D: All of the offspring will be tall with red fruits.
The genotypes of the plants involved in the cross are as follows:
- Plant 1 (RR TT): This plant has dominant traits for both characteristics—red fruit (R) and tallness (T).
- Plant 2 (rr tt): This plant has recessive traits for both characteristics—yellow fruit (r) and shortness (t).
Determining the Offspring Genotypes
When these two plants are crossed, we analyze the potential offspring:
- Red Fruit Trait:
- Plant 1 contributes R (dominant) and Plant 2 contributes r (recessive).
- All offspring will have Rr genotype, resulting in red fruit.
- Tallness Trait:
- Plant 1 contributes T (dominant) and Plant 2 contributes t (recessive).
- All offspring will have Tt genotype, resulting in tall plants.
Phenotypic Ratios of Offspring
From the cross, we can determine the phenotypic outcomes:
- All Offspring Characteristics:
- Since R is dominant over r, all offspring will exhibit red fruit.
- Since T is dominant over t, all offspring will be tall.
Conclusion
Thus, when a plant with genotype RRTT is crossed with a plant with genotype rrtt:
- Result: All offspring (100%) will exhibit red fruit and be tall.
Therefore, the correct answer is option D: All of the offspring will be tall with red fruits.
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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. Can you explain this answer?
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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. 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 In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. Can you explain this answer?.
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. 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 In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt, then:a)25% will be tall with red fruitb)50% will be tall with red fruitc)75% will be tall with red fruitd)All of the offspring will be tall with red fruitsCorrect answer is option 'D'. Can you explain this answer?.
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