CUET · BIOLOGY · PYQ PAPER 2025
A transcription unit in DNA is primarily comprised of:
(A) A Promoter
(B) Origin of replication
(C) The Structural gene
(D) A terminator
Choose the correct answer from the options given below:
- A (A), (B) and (D) only
- B (B), (C) and (D) only
- C (A), (B), (C) and (D)
- D (A), (C) and (D) only
Answer & Solution
Correct Answer
(D) (A), (C) and (D) only
Step-by-step Solution
Detailed explanation
(A), (C) and (D) only
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from BIOLOGY
- The first clinical gene therapy was given to treat :CUET 2023 Medium
- Read the following passage carefully and answer the given questions.
Insulin consists of two short polypeptide chains- chain A and chain B, that are linked together by disulphide bridges. Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans, coleopterans and dipterans. Bt toxin protein is converted into an active form of toxin due to the alkaline pH of the gut which solubilise the crystals. Transgenic animals that produce useful biological products can be created by the introduction of the portion of DNA (or genes) which codes for a particular product such as human protein (alpha-1-antitrypsin) used to treat emphysema. Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called Genetically Modified Organisms (GMO). GM plants have been useful in many ways. Genetic modification has: (i) made crops more tolerant to abiotic stresses. (ii) reduced reliance on chemical pesticides (pest-resistant crops). (iii) helped to reduce post harvest losses. (iv) increased efficiency of mineral usage by plants (this prevents early exhaustion of fertility of soil). (v) enhanced nutritional value of food.
Which one of the following species is not killed by insecticidal protein produced by Bacillus thuringiensis?CUET 2025 Easy - The adaptive radiation is represented by which of the following?
(A) Darwin's finches
(B) Koala and Wombat
(C) Tiger cat and Sugar glider
(D) Spotted cuscus and lemur
(E) Anteater and Numbat
Choose the correct answer from the options given below :CUET 2023 Hard - Analogous structures are formed as a result of :CUET 2023 Medium
- Which one of the following is a result of convergent evolution?CUET 2023 Easy
- Arrange the following historical events in the history of life in chronological order?
(A) Natural selection
(B) Self-replicating molecules
(C) Eukaryotic cell
(D) Prokaryotic cell
Choose the correct answer from the options given below:CUET 2025 Medium
More PYQs from CUET
- Which of the statements are true?
(A) The coagulation of lyophobic sols can be done by electrophoresis
(B) Principal emulsifying agent for W/O emulsions are proteins, soaps, gums etc.
(C) Alum is used for cleaning muddy water
(D) Gelatin is added to ice cream to act as emulsifier
Choose the correct answer from the options given below :CUET 2023 Hard - The outer layer of blastocyst is called as:CUET 2025 Hard
- The only carboxylic acid which gives positive Tollen's test isCUET 2023 Medium
- Answer the questions from the figure given below:

'Taq' in Taq polymerase stands for:CUET 2023 Easy - A symmetrical double convex lens is cut into two equal parts by a plane containing the principal axis. The power of the divided lens is :CUET 2025 Hard
- Match List-I with List-II
List-I (Parameter of Magnetic Dipole) List-II (Formula) (A) Magnetic moment (I) \( \mu_0 2m / (4\pi x^3) \) (B) Magnetic field on the equatorial line (II) \( m \times B \) (C) Magnetic field on axial line (III) \( IA \) (D) External torque in magnetic field (IV) [Missing/Constant]
Choose the correct answer from the options given below:CUET 2025 Hard