InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
If a dihybrid test cross produces offsprings in 1 : 1 ratio, then it can be concluded that (a) the two genes are present on the same chromosome and very close to each other (b) the two genes are present on the same chromosome but apart fromeaqh other (c) the two genes are present on two different chromosomes. (d) there is an independent assortment of genes |
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Answer» (a) the two genes are present on the same chromosome and very close to each other |
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| 52. |
The extracellular fluid in human body contains large amounts of sodium, chloride, bicarbonate ions and other nutrients for the cells. Which of the following can be categorized as extracellular fluid? i. Lymph ii. Renal interstitial fluid iii. Axoplasm iv. Cerebrospinal fluid (a) i, ii, iii and iv (b) i,& iii only (c) i, ii and iv only (d) i & ii only |
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Answer» (c) i, ii and iv only |
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| 53. |
The extend of tilt in the earth's rotation has no influence on : (a) patterns of global climate (b) different seasons (c) periods of glacial expansion/retreat. (d) atmospheric concentrations of gases. |
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Answer» (d) atmospheric concentrations of gases. |
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| 54. |
A test cross of F1 files + a/+b produces the following number of offsprings:++/ab9ab/ab9+b/ab41a+/ab41What will be the distance between two genes? (a) 82 cM (cis) (b) 18 cM (cis) (c) 18 cM (trans) (d) 20 cM (cis) |
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Answer» (c) 18 cM (trans) |
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| 55. |
Which of the following is the main criteria for distinguishing ectotherms from endotherms? (a) The source of heat used to maintain body temperature. (b) Body temperature being constant or variable. (c) Amount of heat used to maintain body temperature. (d) Amount of calories produced in body |
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Answer» (b) Body temperature being constant or variable. |
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| 56. |
Five leaf discs of a hydrophyte were submerged in 0.2% sodium bicarbonate solution (containing a small quantity of soap) and another five discs were submerged in plain water. Which of the following will happen? (a) Discs in bicarbonate solution rise while those in plain water remain submerged. (b) Discs in bicarbonate solution and in plain water, both remain submerged. (c) Discs in plain water rise earlier than those in bicarbonate solution. (d) Discs in bicarbonate solution and in plain water, both rise at the same time. |
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Answer» (a) Discs in bicarbonate solution rise while those in plain water remain submerged. |
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| 57. |
A biologist was given two animal cell populations, X and Y. When he subjected them to culturing under similar conditions of availability of nutrients, growth factors and substratum he found the growth of sample X stopped after the available substratum was covered while the growth of sample Y continued so that multilayered mass was formed. The cells in sample X and Y respectively, are most likely to be: (a) epithelial cells and leucocytes (b) germinal cells and muscle cells (c) normal cells and cancer cells (d) diploid cells and polyploid cells |
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Answer» (c) normal cells and cancer cells |
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| 58. |
In a experiment, a person was subjected to perform 90 minutes leg extension exercise once a day for five days. Every day only the left leg was exercised while other was kept at rest. on the fifth day, concentrations of different mRNAs were measured from muscles of both legs, towards the end of the exercise session. Three major types of mRNAs, P, Q and R were found to show distinct variations in levels:The following are the possible genes from which these mRNAs are synthesised; I. Gene responsible to initiate cell division II. Stress response gene III. Mitochondrial protein synthesis gene IV. Metabolic priority gene P, Q and R respectively must be for mRNAs of (a) II, IV and III (b) I, II and IV (c) II, IV and I (d) IV, II and I |
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Answer» (a) II, IV and III |
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| 59. |
A student designs an experiment to check whether rats have UV vision. Design I: Food is kept in a closed room with only UV light and rat is let in. The rat goes towards the food. Design II. A wooden model of predator is kept in closed rooms with only UV light and rat is let in. The rat tries to run away. Design III. A female rat is kept in closed room with only UV light and male rat is let in. The male rat chases the female. Which of the above experiments can conclusively give information about the rat's vision in UV spectrum? (a) Design I only (b) Design II only (c) Design I and II only (d) Design I, II and III |
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Answer» (b) Design II only |
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