Select the incorrect statement regarding synapses:
| 1. | Impulse Transmission across a chemical synapse is always faster than that across an electrical synapse. |
| 2. | The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse. |
| 3. | Electrical current can flow directly from one neuron into the other across the electrical synapse. |
| 4. | Chemical synapses use neurotransmitters |
Subtopic: Â Nervous System |
 86%
Level 1: 80%+
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Which of the following statements is not true?
| 1. | Flippers of penguins and dolphins are a pair of homologous organs |
| 2. | Analogous structures are a result of convergent evolution |
| 3. | Sweet potato and potato is an example of analogy |
| 4. | Homology indicates common ancestry |
Subtopic: Â Evidences for evolution |
 74%
Level 2: 60%+
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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: Â Blood: Blood Clotting |Â Blood: General Description & RBC |
 87%
Level 1: 80%+
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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: Â Details of Immunity |
 80%
Level 1: 80%+
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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: Â Linkage |
 76%
Level 2: 60%+
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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: Â Contraception: Barrier Methods & IUDs |Â Hormonal Contraceptives, Emergency Contraception & Terminal Methods |
 84%
Level 1: 80%+
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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 |
| (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: Â Connective Tissue |
 87%
Level 1: 80%+
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