CUET · BIOLOGY · PYQ PAPER 2023
Observe the table and answer the given question :
How many amino acids have only two codons coding for them each ?
- A 10
- B 8
- C 7
- D 9
Answer & Solution
Correct Answer
(D) 9
Step-by-step Solution
Detailed explanation
Amino acids with two codons: Phenylalanine (Phe), Tyrosine (Tyr), Histidine (His), Glutamine (Gln), Asparagine (Asn), Lysine (Lys), Aspartic acid (Asp), Glutamic acid (Glu), Cysteine (Cys). Total = 9
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
- Ex-situ conservation method does not include:
(A) Cryopreservation
(B) National park
(C) Zoological park
(D) Sacred groves
Choose the correct answer from the options given below:CUET 2023 Medium - Gel electrophoresis can separate the DNA fragments because :
(A) Agarose gel has sieving effect
(B) DNA fragments are positively charged.
(C) DNA fragments are of different size.
(D) DNA fragments can move in an electric field.
Choose the correct answer from the options given below :CUET 2023 Hard - Answer the questions from the figure given below:
If the reaction starts with one molecule of DNA, the number of cycles required to produce one billion amplified products is:CUET 2023 Hard - Plasmodium enters the human body as:-CUET 2023 Hard
- What amount of energy would be at the producer level if it is 50 KJ at third trophic level?CUET 2023 Medium
- Select the statements which are true for oogenesis?
(A). Ovulation occurs at the secondary oocyte stage.
(B). Polar body is larger than the secondary oocyte.
(C). No more oogonia is formed after birth in the ovary.
(D). The sperm and the ovum nucleus fuse before the formation of the second polar body.
Choose the correct answer from the options given below:CUET 2025 Hard
More PYQs from CUET
- The electrical resistance to the diffusion current in the depletion layer in a p-n junction is large due to the presence ofCUET 2025 Easy
- Which of the statements given below are correct with reference to corrosion:
(A) Corrosion covers the surfaces of metallic objects with oxides or other salts.
(B) In corrosion, a metal is oxidised by the loss of electrons to oxygen and results in the formation of oxides.
(C) Rust is hydrated ferric oxide.
(D) A sacrificial electrode is used to save an object from corrosion.
Choose the correct answer from the options given below.CUET 2025 Easy - Molarity (M) is defined as number of moles of solute dissolved in:CUET 2023 Hard
- Arrange the halogens in the increasing order of bond dissociation enthalpy :
(A) \(F_2\)
(B) \(Cl_2\)
(C) \(Br_2\)
(D) \(I_2\)
Choose the correct answer from the options given below :CUET 2023 Hard - If \(2 f(x)+f\left(\frac{1}{x}\right)=x^2+1\), then \(\int f(x) d x\) is : (Here \(C\) is an arbitrary constant)CUET 2025 Medium
- If matrix A is of order 2 × 3 and B of order 3 × 2 thenCUET 2023 Hard