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In Mendel's experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?
- a)Only wrinkled seeds with yellow cotyledons
- b)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons
- c)Only round seeds with green cotyledons
- d)Only wrinkled seeds with green cotyledons
Correct answer is option 'B'. Can you explain this answer?
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In Mendels experiments with garden pea, round seed shape (RR) was domi...
The expected Phenotypes in the F2 generation of the cross RRYY x rryy is Round-yellow; wrinkled-yellow; round-green and wrinkled-green in 9:3:3:1 similar to dihybrid results.
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In Mendels experiments with garden pea, round seed shape (RR) was domi...
Expected Phenotypes in F2 generation of the cross RRYY x rryy
Dominant and Recessive Traits
In genetics, dominant traits are those that are expressed when an individual has one or two copies of the dominant gene, while recessive traits are only expressed when an individual has two copies of the recessive gene.
Mendel's Experiment with Garden Pea
Gregor Mendel, the founder of modern genetics, conducted experiments with garden pea and observed the inheritance of different traits. He studied seven traits, including seed shape and cotyledon color. He discovered that some traits were dominant over others and followed the laws of segregation and independent assortment.
Seed Shape and Cotyledon Color in Garden Pea
In Mendel's experiments, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy).
F2 Generation of the Cross RRYY x rryy
When Mendel crossed two pea plants, one with round yellow seeds (RRYY) and the other with wrinkled green seeds (rryy), he found that the F1 generation had all round yellow seeds (RrYy). This is because the dominant traits (round seed and yellow cotyledon) masked the recessive traits (wrinkled seed and green cotyledon).
To determine the expected phenotypes in the F2 generation of the cross RRYY x rryy, we need to use the Punnett square. When we cross these two plants, we get the following gametes:
RRYY - RY
rryy - ry
When we combine the gametes in the Punnett square, we get the following genotypes:
RY RY RY RY
ry ry ry ry
RYRRYY RYRRYy RYrrYY RYrrYy
ryRRYY ryRRYy ryrrYY ryrrYy
From this Punnett square, we can see that the F2 generation will have the following phenotypes:
- Round yellow seeds: 9/16 or 56.25%
- Round green seeds: 3/16 or 18.75%
- Wrinkled yellow seeds: 3/16 or 18.75%
- Wrinkled green seeds: 1/16 or 6.25%
Therefore, the expected phenotypes in the F2 generation of the cross RRYY x rryy are round seeds with yellow cotyledons, round seeds with green cotyledons, wrinkled seeds with yellow cotyledons, and wrinkled seeds with green cotyledons. The correct answer is option B.
Dominant and Recessive Traits
In genetics, dominant traits are those that are expressed when an individual has one or two copies of the dominant gene, while recessive traits are only expressed when an individual has two copies of the recessive gene.
Mendel's Experiment with Garden Pea
Gregor Mendel, the founder of modern genetics, conducted experiments with garden pea and observed the inheritance of different traits. He studied seven traits, including seed shape and cotyledon color. He discovered that some traits were dominant over others and followed the laws of segregation and independent assortment.
Seed Shape and Cotyledon Color in Garden Pea
In Mendel's experiments, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy).
F2 Generation of the Cross RRYY x rryy
When Mendel crossed two pea plants, one with round yellow seeds (RRYY) and the other with wrinkled green seeds (rryy), he found that the F1 generation had all round yellow seeds (RrYy). This is because the dominant traits (round seed and yellow cotyledon) masked the recessive traits (wrinkled seed and green cotyledon).
To determine the expected phenotypes in the F2 generation of the cross RRYY x rryy, we need to use the Punnett square. When we cross these two plants, we get the following gametes:
RRYY - RY
rryy - ry
When we combine the gametes in the Punnett square, we get the following genotypes:
RY RY RY RY
ry ry ry ry
RYRRYY RYRRYy RYrrYY RYrrYy
ryRRYY ryRRYy ryrrYY ryrrYy
From this Punnett square, we can see that the F2 generation will have the following phenotypes:
- Round yellow seeds: 9/16 or 56.25%
- Round green seeds: 3/16 or 18.75%
- Wrinkled yellow seeds: 3/16 or 18.75%
- Wrinkled green seeds: 1/16 or 6.25%
Therefore, the expected phenotypes in the F2 generation of the cross RRYY x rryy are round seeds with yellow cotyledons, round seeds with green cotyledons, wrinkled seeds with yellow cotyledons, and wrinkled seeds with green cotyledons. The correct answer is option B.
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In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect answer is option 'B'. Can you explain this answer?
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In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect 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 In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect 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 In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect answer is option 'B'. Can you explain this answer?.
In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect 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 In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect 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 In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice In Mendels experiments with garden pea, round seed shape (RR) was dominant over Wrinkled Seeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?a)Only wrinkled seeds with yellow cotyledonsb)Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledonsc)Only round seeds with green cotyledonsd)Only wrinkled seeds with green cotyledonsCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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