NEET Exam  >  NEET Questions  >  If four oclock plants, the gene for red flowe... Start Learning for Free
If four o'clock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?
  • a)
    75% red flower, 25% pink flowers
  • b)
    All red flowers
  • c)
    50% red flowers, 50% pink flowers
  • d)
    Red : pink : white :: 1 : 2 : 1
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If four oclock plants, the gene for red flower colour (R) is incomplet...
Incomplete dominance is reported in flowers of Merabilis jalapa (four o' clock)When red flower are crossed with pink flowers 50 % red flowers and 50 % pink flowers are obtained
View all questions of this test
Most Upvoted Answer
If four oclock plants, the gene for red flower colour (R) is incomplet...
Explanation:
To understand the ratio of offspring in a cross between red flowers (RR) and pink flowers (Rr), we need to consider the genotypes of the parents.

Genotypes of the parents:
- Red flowers: RR
- Pink flowers: Rr (heterozygous)

Cross between red flowers (RR) and pink flowers (Rr):
In this cross, the possible genotypes of the offspring can be predicted using Punnett square analysis.

Punnett square:
| | R | R |
| ---- | ----- | ----- |
| R | RR | RR |
| R | RR | RR |

The Punnett square shows that all the offspring will have the genotype Rr, which corresponds to pink flowers.

Ratio of offspring:
Since all the offspring have the genotype Rr, they will exhibit the pink flower phenotype.

Therefore, the ratio of offspring in a cross between red flowers and pink flowers is:
- 100% pink flowers

Hence, the correct answer is option C - 50% red flowers, 50% pink flowers.
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
Explore Courses for NEET exam

Top Courses for NEET

If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer?
Question Description
If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. 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 If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer?.
Solutions for If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer?, a detailed solution for If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice If four oclock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), hence the plants heterozygous for flower colour (Rr) have pink flower. What will be the ratio of offsprings in a cross between the red flowers and pink flowers?a)75% red flower, 25% pink flowersb)All red flowersc)50% red flowers, 50% pink flowersd)Red : pink : white :: 1 : 2 : 1Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev