Match List-I with List-II related to embryonic development at various months of pregnancy:
Choose the correct answer from the option given below:
| List-I | List-II | ||
| A. | The foetus movement starts and hair appears on the head | I. | 24 weeks of pregnancy |
| B. | The foetus develops limbs and digits | II. | 20 weeks of pregnancy |
| C. | The foetus develops external genital organs | III. | 8 weeks of pregnancy |
| D. | The foetus body is covered with fine hair; eyelids separate and eyelashes are formed | IV. | 12 weeks of pregnancy |
| 1. | A-III,B-II,C-IV,D-I |
| 2. | A-II,B-IV,C-III,D-I |
| 3. | A-IV,B-II,C-III,D-I |
| 4. | A-II,B-III,C-IV,D-I |
Subtopic: Embryonic Development till Gastrulation |
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A group of researchers procured some fish-like animals and upon investigation the following characters were observed:
Which of the following species of animals did they consider of fit best with these characters ?
| A. | Endoskeleton was made of cartilage. |
| B. | Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth. |
| C. | Paired fins and scales were absent, but 7 pairs of gill slits were present. |
| 1. | Exocoetus sp. |
| 2. | Branchiostoma sp. |
| 3. | Petromyzon sp. |
| 4. | Scoliodon sp. |
Subtopic: Super Class Pisces & its General Characteristics |
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Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statement from the following:
Choose the correct answer from the options given below:
| A. | Spermatogonia always undergo meiotic cell division |
| B. | Primary Spermatogonia divide mitotically to produce secondary Spermatocytes. |
| C. | Secondary Spermatocytes, through their second meiotic division, produce haploid spermatids |
| D. | Spermatids produce spermatozoa through mitosis. |
| E. | Spermatids transform into spermatozoa by spermiogenesis. |
| 1. | C and E only | 2. | A, C and E only |
| 3. | B, C and D only | 4. | A and E only |
Subtopic: Seminiferous Tubules & Spermatogenesis |
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What is the probability of having children with 'O' blood group, where both mother and father are heterozygous for 'A' and 'B' blood group, respectively ?
| 1. | 50% |
| 2. | 0% |
| 3. | 75% |
| 4. | 25% |
Subtopic: Polygenic Inheritance & Pleiotropy |
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Arrange the following events occurring in Renin-Angiotensin mechanism in the correct order:
Choose the correct answer from the option given below:
| A. | Increase in blood pressure and Glomerular filtration rate. |
| B. | Reabsorption of \(Na^+\) and water from distal parts of tubule due to Aldosterone. |
| C. | Fall in Glomerular filtration rate. |
| D. | Vasoconstriction by Angiotensin II and release of Aldosterone. |
| E. | Renin converts Angiotensin II. |
| 1. | C, A, B, D, E |
| 2. | A, D, B, E, C |
| 3. | A, C, E, B, D |
| 4. | C, E, D, B, A |
Subtopic: Osmoregulation |
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Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I (Respiratory Volume) |
List-II (Capacity in mL) |
||
| A. | ERV (Expiratory Reserve Volume) | I. | 2500 – 3000 mL |
| B. | RV (Residual Volume) | II. | 500 mL |
| C. | IRV (Inspiratory Reserve Volume) | III. | 1000 – 1100 mL |
| D. | TV (Tidal Volume) | IV. | 1100 – 1200 mL |
| 1 | A-III,B-I,C-IV,D-II |
| 2 | A-I,B-III,C-II,D-IV |
| 3 | A-III,B-IV,C-I,D-II |
| 4 | A-I,B-II,C-III,D-IV |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
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Match List-I with List-II:
Choose the correct answer from the option given below:
| List-I | List-II | ||
| A. | Progestasert | I. | Barrier made of rubber used by females |
| B. | Multiload 375 | II. | Oral contraceptive |
| C. | Diaphragm | III. | Hormone releasing IUD |
| D. | Saheli | IV. | Copper releasing IUD |
| 1. | A-III,B-IV,C-I,D-II |
| 2. | A-III,B-IV,C-II,D-I |
| 3. | A-IV,B-II,C-I,D-III |
| 4. | A-IV,B-III,C-I,D-II |
Subtopic: Contraception: Barrier Methods & IUDs | Hormonal Contraceptives, Emergency Contraception & Terminal Methods |
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Non-membrane bound cell organelles found in both prokaryotic and eukaryotic cell are___________.
| 1. | Centrosomes |
| 2. | Ribosomes |
| 3. | Lysosomes |
| 4. | Mitochondria |
Subtopic: Ribosome and Inclusion Bodies |
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Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for:
| 1. | Pyramid of energy in pond ecosystem |
| 2. | Pyramid of biomass in sea |
| 3. | Pyramid of number in grassland |
| 4. | Pyramid of biomass in grassland |
Subtopic: Ecological Pyramids |
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The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as :
| 1. | Struthio |
| 2. | Psittacula |
| 3. | Neophron |
| 4. | Aptenodytes |
Subtopic: Study of Aves & Mammals |
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