Which of the following statements are correct with respect to the hormone and its function?
A: Thyrocalcitonin (TCT) regulates the blood calcium level
B: In males, FSH and androgens regulate spermatogenesis
C: Hyperthyroidism can lead to goitre
D: Glucocorticoids are secreted in Adrenal Medulla  
E: Parathyroid hormone is regulated by circulated levels of sodium ions
Choose the most appropriate answer from the options given below:
1. (C) and (E) only 2. (A) and (B) only
3. (B) and (C) only 4. (A) and (D) only

Subtopic:  Thyroid Gland Part I | Thyroid Gland Part II | Adrenal Cortex: Cortisol | Gonadotropin & Gonadal Hormones |
 77%
Level 2: 60%+
NEET - 2023
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Select the sequence of steps in respiration.
(A) Diffusion of gases (O2 and CO2) across alveolar membrane
(B) Diffusion of O2 and CO2 between blood and tissues
(C) Transport of gases by the blood
(D) Pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out
(E) Utilisation of O2 by the cells for catabolic reactions and resultant release of CO2
Choose the correct answer from the options given below:
1. (D), (A), (C), (B), (E) 2. (C), (B), (A), (E), (D)
3. (B), (C), (E), (D), (A) 4. (A), (C), (B), (E), (D)
Subtopic:  Respiratory System: Trachea & Basic Anatomy of Lung |
 83%
Level 1: 80%+
NEET - 2023
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Which of the following is/are cause(s) of biodiversity losses?
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
Subtopic:  Loss of Biodiversity |
 91%
Level 1: 80%+
NEET - 2023
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Match List-I with List-II
List-I List-II
(A) Contractile vacuole (I) Asterias
(B) Water vascular system (II) Amoeba
(C) Canal system (III) Spongilla
(D) Flame cells (IV) Taenia

Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. (IV) (II) (I) (III)
2. (I) (III) (II) (IV)
3. (III) (II) (I) (IV)
4. (II) (I) (III) (IV)
Subtopic:  Phylum Porifera | Phylum Ctenophora | Phylum Echinodermata |
 86%
Level 1: 80%+
NEET - 2023
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Match List - I with List - II
List-I List-II
(A) Palm bones (I) Phalanges
(B) Wrist bones (II) Metacarpals
(C) Ankle bones (III) Carpals
(D) Digit bones (IV) Tarsals
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. II III I IV
2. IV I II III
3. III IV I II
4. II III IV I
Subtopic:  Appendicular Skeleton |
 85%
Level 1: 80%+
NEET - 2023
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 Match List-I with List-II
List-I List-II
(A) Non-medicated IUDs  (I) Multiload 375
(B) Copper releasing IUDs (II) Rubber barrier
(C) Hormone releasing IUDs (III) Lippes loop
(D) Vaults (IV) LNG-20

Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. (IV) (III) (I) (II)
2. (II) (IV) (III) (I)
3. (III) (I) (IV) (II)
4. (III) (IV) (II) (I)
Subtopic:  Contraception: Barrier Methods & IUDs |
 90%
Level 1: 80%+
NEET - 2023
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Which of the following can act as molecular scissors?
1. Restriction enzymes
2. DNA ligase
3. RNA polymerase
4. DNA polymerase
Subtopic:  Restriction Enzymes - Main Enzymes |
 94%
Level 1: 80%+
NEET - 2023
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 Select the correct statements about sickle cell anemia:
A: There is a change in the gene for beta-globin
B: In beta-globin, there is a valine in place of Lysine
C: It is an example of point mutation
D: In the normal gene, U is replaced by A

Choose the correct answer from the options given below:
1. (B), (C) and (D) only 2. (B) and (D) only
3. (A), (B) and (D) only 4. (A) and (C) only
Subtopic:  Mendelian Disorders: Sickle Cell Anemia |
 83%
Level 1: 80%+
NEET - 2023
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Which combination of the following substances will result in the formation of an acidic buffer when mixed?
1. Weak acid and it's salt with a strong base.
2. Equal volumes of equimolar solutions of weak acid and weak base.
3. Strong acid and its salt with a strong base.
4. Strong acid and its salt with a weak base.
(The pKa of acid = pKb of the base)
Subtopic:  Buffer |
 78%
Level 2: 60%+
NEET - 2023
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Given below are two statements:
I: Intra Cytoplasmic sperm injection (ICSI) is another specialized procedure of in-vivo fertilization.
II:  Infertility cases due to the inability of the male partner to inseminate the female can be corrected by artificial insemination (AI)
In light of the above statements, choose the correct answer from the options given below:
1. Statement I is correct but Statement II is incorrect.
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic:  Infertility |
 55%
Level 3: 35%-60%
NEET - 2023
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