In an inducible operon, the genes are:
1. usually not expressed unless a signal turns them "on"
2. usually expressed unless a signal turns them "off"
3. never expressed
4. always expressed
1. usually not expressed unless a signal turns them "on"
2. usually expressed unless a signal turns them "off"
3. never expressed
4. always expressed
Subtopic: Gene Regulation: Lac Operon |
69%
Level 2: 60%+
NEET - 2013
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Select the option which correctly matches the endocrine gland with its hormone and its function:
| Endocrine gland | Hormone | Functions | |
| 1. | Placenta | estrogen | initiates secretion of milk |
| 2. | Corpus luteum | estrogen | essential for the maintenance of endometrium |
| 3. | Leydig cells | androgen | initiates the production of sperm |
| 4. | Ovary | FSH | stimulates follicular development and the secretion of estrogens |
Subtopic: Gonadotropin & Gonadal Hormones |
65%
Level 2: 60%+
NEET - 2013
Hints
Genes of interest can be selected from a genomic library by using:
1. Cloning vectors
2. DNA probes
3. Gene targets
4. Restriction enzymes
1. Cloning vectors
2. DNA probes
3. Gene targets
4. Restriction enzymes
Subtopic: Molecular Diagnosis |
Level 3: 35%-60%
NEET - 2013
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A healthy person eats the following diet-5gm raw sugar, 4 gm albumin, 10 gm pure buffalo ghee adulterated with 2 gm vegetable ghee (hydrogenated vegetable oil) and 5 gm lignin. How many calories he is likely to get?
1. 126
2. 164
3. 112
4. 144
1. 126
2. 164
3. 112
4. 144
Subtopic: Calorific value |
Level 3: 35%-60%
NEET - 2013
Hints
Select the correct statement with respect to disorders of muscles in humans.
| 1. | Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing |
| 2. | Accumulation of urea and creatine in the joints causes their inflammation |
| 3. | An overdose of vitamin D causes osteoporosis |
| 4. | Rapid contractions of skeletal muscles causes muscle dystrophy |
Subtopic: Disorders of Muscular and Skeletal System |
Level 3: 35%-60%
NEET - 2013
Hints
How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?
1. Three
2. Four
3. Five
4. Two
1. Three
2. Four
3. Five
4. Two
Subtopic: Venation, Types of Leaves & Phyllotaxy |
Level 4: Below 35%
NEET - 2013
Hints
Which of the following statements is not true about somatic embryogenesis?
| 1. | The pattern of development of a somatic embryo is comparable to that of a zygotic embryo |
| 2. | Somatic embryos can develop from microspores |
| 3. | Somatic embryo is induced usually by an auxin such as 2, 4–D |
| 4. | A somatic embryo develops from a somatic cell |
Subtopic: Plant Tissue Culture |
Level 3: 35%-60%
NEET - 2013
Hints
Which one of the following statements is correct?
| 1. | Cleistogamous flowers are always autogamous |
| 2. | Xenogamy occurs only by wind pollination |
| 3. | Chasmogamous flowers do not open at all |
| 4. | Geitonogamy involves the pollen and stigma of flowers of different plants |
Subtopic: Pollination & Outbreeding Devices |
86%
Level 1: 80%+
NEET - 2013
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 358471
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Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 358471
Norepinephrine:
a. is released by sympathetic fibers
b. is released by parasympathetic fibers
c. increases the heart rate
d. decreases blood pressure
Which of the above said statements are correct?
a. is released by sympathetic fibers
b. is released by parasympathetic fibers
c. increases the heart rate
d. decreases blood pressure
Which of the above said statements are correct?
| 1. | a and c | 2. | b and c |
| 3. | b and d | 4. | a and d |
Subtopic: Adrenal Medulla |
61%
Level 2: 60%+
NEET - 2013
Hints
Dinosaurs dominated the World in which of the following geological era?
1. Coenozoic
2. Jurassic
3. Mesozoic
4. Devonion
1. Coenozoic
2. Jurassic
3. Mesozoic
4. Devonion
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
Level 4: Below 35%
NEET - 2013
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