Which one of the following statements is correct?
| 1. | Increased ventricular pressure causes closing of the semilunar valves. |
| 2. | The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction. |
| 3. | The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria. |
| 4. | Blood moves freely from atrium to the ventricle during joint diastole. |
Subtopic: Human Heart: Cardiac Cycle |
51%
Level 3: 35%-60%
NEET - 2022
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Match List-I with List-II
Choose the correct answer from the options given below:
| List-I (Biological Molecules) |
List - II (Biological functions) |
||
| (a) | Glycogen | (i) | Hormone |
| (b) | Globulin | (ii) | Biocatalyst |
| (c) | Steroids | (iii) | Antibody |
| (d) | Thrombin | (iv) | Storage product |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (iv) | (ii) | (i) | (iii) |
| 4. | (ii) | (iv) | (iii) | (i) |
Subtopic: Proteins | Carbohydrates: Starch & Glycogen |
78%
Level 2: 60%+
NEET - 2022
Hints
Select the incorrect statement with respect to acquired immunity.
| 1. | Acquired immunity is non-specific type of defense present at the time of birth. |
| 2. | Primary response is produced when our body encounters a pathogen for the first time. |
| 3. | Anamnestic response is elicited on subsequent encounters with the same pathogen. |
| 4. | Anamnestic response is due to memory of first encounter. |
Subtopic: Details of Immunity |
82%
Level 1: 80%+
NEET - 2022
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Ten E.coli cells with \({ }^{15} \mathrm{~N}\) - ds DNA are incubated in medium containing \({ }^{14} \mathrm{~N}\) nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from \({ }^{15} \mathrm{~N}\) ?
1. 80 cells
2. 20 cells
3. 40 cells
4. 60 cells
1. 80 cells
2. 20 cells
3. 40 cells
4. 60 cells
Subtopic: DNA Replication |
57%
Level 3: 35%-60%
NEET - 2022
Hints
Which of the following is a correct statement?
| 1. | Mycoplasma have DNA, Ribosome and cell wall. |
| 2. | Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera. |
| 3. | Bacteria are exclusively heterotrophic organisms. |
| 4. | Slime moulds are saprophytic organisms classified under Kingdom Monera. |
Subtopic: Kingdom Monera: Bacterial Classification |
73%
Level 2: 60%+
NEET - 2022
Hints
The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?
| 1. | a, c, b, d | 2. | a, d, b, c |
| 3. | d, b, a, c | 4. | a, b, c, d |
Subtopic: Recombination & Gene Mapping |
74%
Level 2: 60%+
NEET - 2022
Hints
Match List-I with List-II with respective to methods of Contraception and their respective actions.
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Diaphragms | (i) | Inhibit ovulation and Implantation |
| (b) | Contraceptive Pills | (ii) | Increase phagocytosis of sperm within Uterus |
| (c) | Intra Uterine Devices | (iii) | Absence of Menstrual cycle and ovulation following parturition |
| (d) | Lactational Amenorrhea | (iv) | They cover the cervix blocking the entry of sperms |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (iv) | (i) | (iii) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (ii) | (iv) | (i) | (iii) |
Subtopic: Contraception: Natural Methods | Contraception: Barrier Methods & IUDs | Hormonal Contraceptives, Emergency Contraception & Terminal Methods |
90%
Level 1: 80%+
NEET - 2022
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Bronchioles | (i) | Dense Regular Connective Tissue |
| (b) | Goblet cell | (ii) | Loose Connective Tissue |
| (c) | Tendons | (iii) | Glandular Tissue |
| (d) | Adipose Tissue | (iv) | Ciliated Epithelium |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (iii) | (i) | (ii) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (ii) | (i) | (iv) | (iii) |
Subtopic: Simple Epithelium | Glandular Epithelium & Cell Junction | Connective Tissue |
92%
Level 1: 80%+
NEET - 2022
Hints
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness
1. 100%
2. 25%
3. 50%
4. 75%
1. 100%
2. 25%
3. 50%
4. 75%
Subtopic: Pedigree Analysis: More Examples |
70%
Level 2: 60%+
NEET - 2022
Hints
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles. |
| Statement II: | Particulate matter (PM 2.5) cannot be removed by scrubber but can be removed by an electrostatic precipitator. |
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Air Pollution |
Level 4: Below 35%
NEET - 2022
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