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Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :
Assertion : Complementary genes are non-allelic genes.
Reason : Complementary genes interact to produce a completely new trait.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'B'. Can you explain this answer?
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Direction: In the following questions a statement of assertion (A) is...
Complementary genes are those non-allelic genes which independently show a similar effect but produces a new trait when present together in the dominant form. W. Bateson and R.C. Punnett observed that, when two white flowered varieties of sweet pea, Lathyrus odoratus were crossed, F1 progeny had coloured flowers. When F2 progeny obtained from F1 was classified, plants with coloured flowers and those with white flowers were obtained in 9 : 7 ratio. The two dominants are brought together in F1 generation and therefore coloured flowers are produced.
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Direction: In the following questions a statement of assertion (A) is...
Assertion: Complementary genes are non-allelic genes.
Reason: Complementary genes interact to produce a completely new trait.
The correct answer is option B: Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Explanation:
Complementary genes are a type of gene interaction where two non-allelic genes work together to produce a specific trait. Let's break down the given assertion and reason to understand why option B is the correct answer.
Complementary Genes:
Complementary genes are a type of gene interaction where the presence of both genes is required to produce a specific trait. These genes are non-allelic, which means they are located on different loci or chromosomes and do not have alternative forms (alleles) for the same trait.
Interacting to produce a completely new trait:
The reason states that complementary genes interact to produce a completely new trait. However, this is not entirely correct. Complementary genes do not necessarily produce a completely new trait. Instead, they work together to enhance or complete a specific trait. The traits produced by complementary gene interaction are not entirely different from the traits produced by the individual genes alone. The interaction between complementary genes is often necessary for the full expression of a trait.
Example:
One of the classic examples of complementary gene interaction is the flower color in sweet peas. The color of the flower is determined by two genes: one gene controls the synthesis of a purple pigment, while the other gene controls the synthesis of an enzyme required for the production of the purple pigment. Both genes need to be present and functional for the flower to be purple. If one or both of the genes are absent or non-functional, the flower color will be different (e.g., white or pink).
In conclusion, both the assertion and reason are true. Complementary genes are indeed non-allelic genes that interact to produce a specific trait. However, the reason provided does not fully explain the concept of complementary gene interaction, as it suggests that completely new traits are produced, which is not always the case. Therefore, option B is the correct answer.
Reason: Complementary genes interact to produce a completely new trait.
The correct answer is option B: Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
Explanation:
Complementary genes are a type of gene interaction where two non-allelic genes work together to produce a specific trait. Let's break down the given assertion and reason to understand why option B is the correct answer.
Complementary Genes:
Complementary genes are a type of gene interaction where the presence of both genes is required to produce a specific trait. These genes are non-allelic, which means they are located on different loci or chromosomes and do not have alternative forms (alleles) for the same trait.
Interacting to produce a completely new trait:
The reason states that complementary genes interact to produce a completely new trait. However, this is not entirely correct. Complementary genes do not necessarily produce a completely new trait. Instead, they work together to enhance or complete a specific trait. The traits produced by complementary gene interaction are not entirely different from the traits produced by the individual genes alone. The interaction between complementary genes is often necessary for the full expression of a trait.
Example:
One of the classic examples of complementary gene interaction is the flower color in sweet peas. The color of the flower is determined by two genes: one gene controls the synthesis of a purple pigment, while the other gene controls the synthesis of an enzyme required for the production of the purple pigment. Both genes need to be present and functional for the flower to be purple. If one or both of the genes are absent or non-functional, the flower color will be different (e.g., white or pink).
In conclusion, both the assertion and reason are true. Complementary genes are indeed non-allelic genes that interact to produce a specific trait. However, the reason provided does not fully explain the concept of complementary gene interaction, as it suggests that completely new traits are produced, which is not always the case. Therefore, option B is the correct answer.
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Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?
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Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct 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 Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct 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 Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct 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 Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct 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 Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Direction: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Complementary genes are non-allelic genes.Reason : Complementary genes interact to produce a completely new trait.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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