CUET UG 2023 Biology Question Paper (28-May-2023) (Shift 1)

Question 1

Which of the following statements are not correct?(A) The milk produced during the initial few days of lactation is called colostrum which contains several antibodies.(B) The signals for the parturition originate from the pituitary gland of the mother.(C) Parturition is induced by a complex neuroendocrine mechanism.(D) Oxytocin is released from the ovary of the mother and acts on the uterine muscles.Choose the correct answer from the options given below:

Accepted Answer

(b) (B) and (D) only

Answer

(a) (A) and (B) only

Answer

(c) (C) and (D) only

Answer

(d) (A) and (C) only

Question 2

Which of the following enzymes is used during isolation of DNA from plant cells?

Accepted Answer

(b) Chitinase

Answer

(a) Pectinase

Answer

(c) Lysozyme

Answer

(d) Cellulase

Question 3

Arrange the following events in the correct sequence:(A) Virus infects macrophages(B) Viral DNA is produced by reverse transcriptase(C) Viral DNA incorporates into the host genome(D) Viral RNA is introduced into macrophages(E) New viruses are producedChoose the correct answer from the options given below:

Accepted Answer

(b) (A), (D), (B), (C), (E)

Answer

(a) (A), (B), (D), (C), (E)

Answer

(c) (A), (B), (C), (D), (E)

Answer

(d) (A), (C), (D), (B), (E)

Question 4

Asexual reproductive structures in sponges are known as:

Accepted Answer

(c) Gemmules

Answer

(a) Conidia

Answer

(b) Pseudopodiospores

Answer

(d) Zoospores

Question 5

Increase in concentration of toxicants at successive trophic levels in an aquatic food chain is called:

Accepted Answer

(c) Biomagnification

Answer

(a) Transformation

Answer

(b) Biofortification

Answer

(d) Eutrophication

CUET UG 2023 Biology Question Paper (28-May-2023) (Shift 1)

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