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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:
- a)25% will be tall with red fruit
- b)75% will be tall with red fruit
- c)50% will be tall with red fruit
- d)All the offspring will be tall with red fruit
Correct answer is option 'C'. Can you explain this answer?
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In a plant, red fruit (R) is dominant over yellow fruit (r) and tallne...
If a plant with RRTt genotype is crossed with a plant that is rrtt 50% of the 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...
Explanation:
The given question involves the principles of Mendelian inheritance. The genotype of a plant is the genetic makeup of an organism, while the phenotype is the physical expression of the genotype. In this case, the dominant traits are red fruit (R) and tallness (T), while the recessive traits are yellow fruit (r) and shortness (t).
Possible gametes of the plant with RRTt genotype are RT, Rt, rT, and rt. On the other hand, the gametes of the plant that is rrtt are rt only. The Punnett square for the cross between the two plants would look like this:
| | R T | R t | r t |
|---|---|---|---|
| r t | RrTt | Rrtt | rrtt |
From the Punnett square, we can see that the offspring will have the following genotypes and phenotypes:
- 1/4 or 25% will be tall with red fruit (RrTt)
- 1/4 or 25% will be tall with yellow fruit (Rrtt)
- 1/4 or 25% will be short with red fruit (rrTt)
- 1/4 or 25% will be short with yellow fruit (rrtt)
However, we only need to consider the tall plants with red fruit, which are RrTt and Rrtt. Both genotypes have the dominant traits of red fruit and tallness, so their phenotypes are the same. Therefore, the proportion of offspring that will be tall with red fruit is:
- 1/4 or 25% (RrTt)
- 1/4 or 25% (Rrtt)
Together, they make up 50% of the offspring. Therefore, the correct answer is option C, 50% will be tall with red fruit.
The given question involves the principles of Mendelian inheritance. The genotype of a plant is the genetic makeup of an organism, while the phenotype is the physical expression of the genotype. In this case, the dominant traits are red fruit (R) and tallness (T), while the recessive traits are yellow fruit (r) and shortness (t).
Possible gametes of the plant with RRTt genotype are RT, Rt, rT, and rt. On the other hand, the gametes of the plant that is rrtt are rt only. The Punnett square for the cross between the two plants would look like this:
| | R T | R t | r t |
|---|---|---|---|
| r t | RrTt | Rrtt | rrtt |
From the Punnett square, we can see that the offspring will have the following genotypes and phenotypes:
- 1/4 or 25% will be tall with red fruit (RrTt)
- 1/4 or 25% will be tall with yellow fruit (Rrtt)
- 1/4 or 25% will be short with red fruit (rrTt)
- 1/4 or 25% will be short with yellow fruit (rrtt)
However, we only need to consider the tall plants with red fruit, which are RrTt and Rrtt. Both genotypes have the dominant traits of red fruit and tallness, so their phenotypes are the same. Therefore, the proportion of offspring that will be tall with red fruit is:
- 1/4 or 25% (RrTt)
- 1/4 or 25% (Rrtt)
Together, they make up 50% of the offspring. Therefore, the correct answer is option C, 50% will be tall with red fruit.
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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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. 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 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. 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 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. Can you explain this answer?, a detailed solution 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of 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:a)25% will be tall with red fruitb)75% will be tall with red fruitc)50% will be tall with red fruitd)All the offspring will be tall with red fruitCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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