CUET · BIOLOGY · PYQ PAPER 2023

ABO blood group is an example of:

A Single allele
B Multiple alleles
C Single gene
D Two genes

Verified Solution

Answer & Solution

Correct Answer

(B) Multiple alleles

Step-by-step Solution

Detailed explanation

Multiple alleles

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Which of the following is correct about RNA ?
(A) Unstable and mutates slower
(B) Unstable and mutates faster
(C) Stable and mutates faster
(D) Stable and mutates slower
Choose the correct answer from the options given below :

CUET 2023 Hard
Which one of the following is not fermented by microbes to make foods?

CUET 2025 Hard
During the development of human embryo, which of the following hormone is NOT produced by placenta?

CUET 2023 Hard
In gel electrophoresis the separated DNA fragments can be visualised:

CUET 2023 Hard
Which of the following organism does not show 'XO' condition chromosomes?

CUET 2023 Hard
In a typical angiosperm, the mature embryo sac is:

CUET 2023 Hard

Explore more questions on app

From CUET

In a magnetic field,
(A) a charged particle in motion can experience a force
(B) a charged particle at rest, experiences a force
(C) there is no change in the speed of the charged particle
(D) there is a change in the kinetic energy of the charged particle.
Choose the correct answer from the options given below:

CUET 2025 Medium
If the matrix \(A =\left(\begin{array}{ll}1 & 3 \\ 2 & 1\end{array}\right)\), then the value of \(\operatorname{det}\left( A ^2-2 A \right)\) is equal to

CUET 2025 Easy
If \(\vec{a}=5 \hat{i}-\hat{j}-3 \hat{k} \& \vec{b}=\hat{i}-3 \hat{j}+5 \hat{k}\) the angle between \(\vec{a}+\vec{b}\) and \(\vec{a}-\vec{b}\) is:

CUET 2023 Hard
Which one of the following statement is incorrect about sinking fund?

CUET 2025 Medium
If \(A\) is non-singular square matrix of order 3 and \(\left|A^{-1}\right|=24\), then the value of \(|2 A(\operatorname{adj}(3 A))|\), is

CUET 2023 Easy
An electron is accelerated through a potential difference of \( V = 36 \text{ V} \). The de-Broglie wavelength associated with it will be

CUET 2025 Medium

Explore more questions on app