MHT CET 202623 AprilEvening Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 23 April
- Shift
- Evening Shift
- Subject
- Biology
- Chapter
- Principles of Inheritance and Variation
MHT CET 2026 · 23 April · Evening Shift · Biology · Principles of Inheritance and Variation
Match List I with List II List I Types of gene interaction. List II...
Match List I with List II
Choose the correct answer from the options given below:
| List I Types of gene interaction. | List II Examples. |
|---|---|
| (A). Pleiotropy | (I). Mirabilis jalapa |
| (B). Codominance | (II). ABO blood group |
| (C). Incomplete dominance | (III). Sickle cell anemia |
| (D). Multiple allele | (IV). Coat color in cattle |
Options
- A(A) - (II), (B) - (III), (C) - (IV), (D) - (I)
- B(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
- C(A) - (III), (B) - (IV), (C) - (I), (D) - (II)
- D(A) - (III), (B) - (IV), (C) - (II), (D) - (I)
Correct answer
C. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Step-by-step solution
Pleiotropy occurs when a single gene influences multiple phenotypic traits. Sickle cell anemia is a classic example, where a single mutation in the beta-globin gene affects red blood cell shape, leading to multiple systemic effects.
Codominance is a condition where both alleles in a heterozygote are fully expressed. Coat color in cattle (roan coat) is an example, where both red and white hairs are expressed together.
Incomplete dominance occurs when the phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes. Flower color in Mirabilis jalapa (Four o'clock plant) is an example, where a cross between red and white flowers produces pink flowers.
Multiple allelism refers to the presence of more than two alleles for a given gene within a population. The ABO blood group system in humans is an example, controlled by three alleles: , , and .
Thus, the correct matching is (A) - (III), (B) - (IV), (C) - (I), (D) - (II).
Answer: (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Codominance is a condition where both alleles in a heterozygote are fully expressed. Coat color in cattle (roan coat) is an example, where both red and white hairs are expressed together.
Incomplete dominance occurs when the phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes. Flower color in Mirabilis jalapa (Four o'clock plant) is an example, where a cross between red and white flowers produces pink flowers.
Multiple allelism refers to the presence of more than two alleles for a given gene within a population. The ABO blood group system in humans is an example, controlled by three alleles: , , and .
Thus, the correct matching is (A) - (III), (B) - (IV), (C) - (I), (D) - (II).
Answer: (A) - (III), (B) - (IV), (C) - (I), (D) - (II)