The phenomenon of pleiotropism refers to
- Presence of two alleles, each of the two genes controlling a single trait
- A single gene affecting multiple phenotypic expression
- More than two genes affecting a single character
- Presence of several alleles of a single gene controlling a single crossover
The Correct Option is B
Solution and Explanation
In pleiotropy, a single gene has multiple effects on the phenotype, leading to the expression of multiple traits or characteristics. These different traits may seemingly be unrelated to each other, and they arise from the influence of the same gene on various biochemical pathways or developmental processes within the organism. Pleiotropy is a common occurrence in genetics and can result in diverse phenotypic effects caused by alterations in a single gene.
Therefore, The correct option is (B): A single gene affecting multiple phenotypic expression
Top Questions on Principles of Inheritance and Variation
- If there were 100 rose plants in a garden last year. 20 new rose plants are added through reproduction in current year. the birth rate of rose is ____ offspring per rose per year.
- CUET (UG) - 2023
- Biology
- Principles of Inheritance and Variation
- If a pink flowered snapdhagon plant is crossed with a white flowered snapdragan plant. What will be the phenotype of their progen ?
- CUET (UG) - 2023
- Biology
- Principles of Inheritance and Variation
Which of the following statements are correct about Klinefelter’s Syndrome?
A. This disorder was first described by Langdon Down (1866).
B. Such an individual has overall masculine development. However, the feminine development is also expressed.
C. The affected individual is short statured.
D. Physical, psychomotor and metal development is retarded. E. Such individuals are sterile.Choose the correct answer from the options given below:
- NEET (UG) - 2023
- Biology
- Principles of Inheritance and Variation
- Which one of the following symbols represents mating between relatives in human pedigree analysis?
- NEET (UG) - 2023
- Biology
- Principles of Inheritance and Variation
- In Turner's Syndrome, during cell division, which type of Aneuploidy is seen?
- GUJCET - 2023
- Biology
- Principles of Inheritance and Variation
Questions Asked in NEET exam
- A thin flat circular disc of radius 4.5 cm is placed gently over the surface of water. If surface tension of water is 0.07 Nm-1, then the excess force required to take it away from the surface is :
- NEET (UG) - 2024
- Surface tension
- Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. CO2
D. ATP
E. NADPH
Choose the correct answer from the options given below:- NEET (UG) - 2024
- Where Does Photosynthesis Take Place?
- If \(x=5\sin(\pi i+\frac{\pi}{3})m\) represents the motion of a particle executing simple harmonic motion, the amplitude and time period of motion, respectively, are :
- NEET (UG) - 2024
- simple harmonic motion
- The highest number of helium atoms is in
- NEET (UG) - 2024
- Electronic configuration of atoms and ions
- \(^{290}_{82}X\stackrel{\alpha}{\rightarrow}Y\stackrel{e^+}{\rightarrow}Z\stackrel{\beta^-}{\rightarrow}P\stackrel{e^-}{\rightarrow}Q\)
In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are :- NEET (UG) - 2024
- Nuclear physics
SUBSCRIBE TO OUR NEWS LETTER
