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Out of two alleles of the same gene, one finds morphological expression. The phenomenon is
- a)Epistasis
- b)Codominance
- c)Dominance
- d)Incomplete dominance
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Out of two alleles of the same gene, one finds morphological expressio...
Epistasis is the non-allelic gene interaction where the presence of one gene masks the expression of another gene; it is an attribute of polygenic trait while the question is about two alleles of the single gene; option A is wrong. When both recessive and dominant traits are expressed in a heterozygous genotype; it is codominance; but here only one allele shows its presence in heterozygous genotype, option B is incorrect.
As we know that, a trait is represented by two contrasting factors of a gene in a heterozygous individual; the allele/factor that can express itself in the heterozygous individual is called a dominant trait and the phenomenon is called dominance. The other factor whose effect is masked by the presence of the dominant factor is called the recessive factor. This makes option C correct. Incomplete dominance is the condition when none of the factors of a gene is dominant and the phenotype of the heterozygous dominant individual is a blend of dominant and recessive traits. But here the one allele is expressed in heterozygous genotype which makes option D wrong.
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Most Upvoted Answer
Out of two alleles of the same gene, one finds morphological expressio...
Explanation:
Dominance:
- Dominance is a phenomenon where one allele of a gene masks the expression of another allele in the heterozygous condition.
- The allele that is expressed is called the dominant allele, while the allele that is not expressed is called the recessive allele.
Example:
- In the case of flower color in pea plants, the gene for flower color has two alleles: one for purple flowers (dominant allele) and one for white flowers (recessive allele).
- If a pea plant inherits one allele for purple flowers and one allele for white flowers, it will exhibit the purple flower color phenotype because the allele for purple flowers is dominant over the allele for white flowers.
Given Scenario:
- In the given scenario, one allele of the gene is expressing the morphological trait, indicating that it is the dominant allele in the heterozygous condition.
- This situation aligns with the concept of dominance, where the dominant allele determines the phenotype in the presence of a recessive allele.
Therefore, the correct phenomenon observed in this scenario is Dominance.
Dominance:
- Dominance is a phenomenon where one allele of a gene masks the expression of another allele in the heterozygous condition.
- The allele that is expressed is called the dominant allele, while the allele that is not expressed is called the recessive allele.
Example:
- In the case of flower color in pea plants, the gene for flower color has two alleles: one for purple flowers (dominant allele) and one for white flowers (recessive allele).
- If a pea plant inherits one allele for purple flowers and one allele for white flowers, it will exhibit the purple flower color phenotype because the allele for purple flowers is dominant over the allele for white flowers.
Given Scenario:
- In the given scenario, one allele of the gene is expressing the morphological trait, indicating that it is the dominant allele in the heterozygous condition.
- This situation aligns with the concept of dominance, where the dominant allele determines the phenotype in the presence of a recessive allele.
Therefore, the correct phenomenon observed in this scenario is Dominance.
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Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer?.
Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Out of two alleles of the same gene, one finds morphological expression. The phenomenon isa)Epistasisb)Codominancec)Dominanced)Incomplete dominanceCorrect answer is option 'C'. Can you explain this answer?.
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