Match List I with List II:
Choose the correct answer from the options given below.
1. A-II, B-III, C-IV, D-I
2. A-IV, B-I, C-II, D-III
3. A-III, B-IV C-I D-II
4. A-I, B-II, C-III, D-IV
| List-I (Phase of cell cycle |
List-II (Activity) |
||
| A. | G1 phase | I. | Actual cell division occurs |
| B. | S phase | II. | Cell is metabolically active and continuously grows but does not replicate its DNA |
| C. | G2 phase | III. | Synthesis of DNA occurs and the amount of DNA per cell doubles |
| D. | M phase | IV. | Proteins are synthesized while cell growth continues |
Choose the correct answer from the options given below.
1. A-II, B-III, C-IV, D-I
2. A-IV, B-I, C-II, D-III
3. A-III, B-IV C-I D-II
4. A-I, B-II, C-III, D-IV
Please attempt this question first.
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Match List I with List II:
Choose the correct answer from the options given below :
1. A-II, B-IV, C-III, D-I
2. A-I, B-IV, C-III, D-II
3. A-I, B-III, C-II, D-IV
4. A-II, B-I, C-III, D-IV
| List I | List II | ||
| A. | Incomplete dominance | I. | Human skin colour |
| B. | Co-dominance | II. | Inheritance of flower colour in Antirrhinum sp. |
| C. | Pleiotropy | III. | Phenylketonuria disease in humans |
| D. | Polygenic inheritance | Iv. | ABO blood groups |
Choose the correct answer from the options given below :
1. A-II, B-IV, C-III, D-I
2. A-I, B-IV, C-III, D-II
3. A-I, B-III, C-II, D-IV
4. A-II, B-I, C-III, D-IV
Please attempt this question first.
Hints
Which of the following statements are correct?
Choose the correct answer from the options given below :
1. B, C and D only
2. A, B and D only
3. A, B and E only
4. C, D and E only
| A. | The Amazon rainforest being cut and cleared for cultivation of soyabeans is an example of habitat loss. |
| B. | Steller’s sea cow and passenger pigeon became extinct due to over-exploitation by humans. |
| C. | The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake. |
| D. | Water hyacinth is an invasive species. |
| E. | When a species becomes extinct, the plant and animal species associated with it are not affected. |
Choose the correct answer from the options given below :
1. B, C and D only
2. A, B and D only
3. A, B and E only
4. C, D and E only
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Which of the following statements are correct with reference to a transcription unit?
Choose the correct answer from the options given below:
1. A, C, D and E only
2. A, B, C, D and E
3. A, B, C and D only
4. B, C, D and E only
| A. | A transcription unit in DNA is defined primarily by three regions: promoter, structural gene and terminator. |
| B. | The promoter is said to be located towards the \(5^{\prime}\)-end of the structural gene. |
| C. | The promoter is a DNA sequence that provides binding site for RNA polymerase. |
| D. | The promoter defines the template and coding strands. |
| E. | The terminator is located towards the \(3^{\prime}\)-end of the coding strand and it defines the end of the process of transcription. |
Choose the correct answer from the options given below:
1. A, C, D and E only
2. A, B, C, D and E
3. A, B, C and D only
4. B, C, D and E only
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Which of the following statements are true with reference to the sex-determination in honeybees ?
Choose the correct answer from the options given below:
1. A, B, C and E only
2. B, C, D and E only
3. A, B, C and D only
4. A, B, D and E only
| A. | An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker). |
| B. | An unfertilized egg develops as a male by parthenogenesis. |
| C. | A male has half the number of chromosomes than that of a female. |
| D. | Males produce sperm by meiosis. |
| E. | Honeybees have a haplodiploid sex-determination system. |
Choose the correct answer from the options given below:
1. A, B, C and E only
2. B, C, D and E only
3. A, B, C and D only
4. A, B, D and E only
Please attempt this question first.
Hints
Match List I with List II:
Options:
1. A-I, B-IV, C-III, D-II
2. A-III, B-I, C-IV, D-II
3. A-IV, B-II, C-I, D-III
4. A-II, B-III, C-IV, D-I
| List -I (Process) |
List -II (Location) |
||
| A. | Glycolysis | I. | Inner mitochondrial membrane |
| B. | ETS | II. | Mitochondrial matrix |
| C. | Accumulation of protons | III. | Cytoplasm |
| D. | Krebs’ cycle | IV. | Intermembrane space |
Options:
1. A-I, B-IV, C-III, D-II
2. A-III, B-I, C-IV, D-II
3. A-IV, B-II, C-I, D-III
4. A-II, B-III, C-IV, D-I
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Hints
How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway?
| 1. | 18 ATP and 12 NADPH. | 2. | 6 ATP and 12 NADPH. |
| 3. | 24 ATP and 18 NADPH. | 4. | 12 ATP and 18 NADPH. |
Please attempt this question first.
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Match List I wit List II:
Choose the correct answer from the options given below :
1. A-II, B-III, C-I, D-IV
2. A-I, B-IV, C-III, D-II
3. A-I, B-II, C-IV, D-III
4. A-II, B-I, C-IV, D-III
| List I | List II | ||
| A. | Genetically modified organism | I. | Agrobacterium |
| B. | Thermostable DNA | II. | Bt cotton |
| C. | Ti plasmid | III. | Thermus aquaticus |
| D. | pBR322 | Iv. | Eschericihia coli |
1. A-II, B-III, C-I, D-IV
2. A-I, B-IV, C-III, D-II
3. A-I, B-II, C-IV, D-III
4. A-II, B-I, C-IV, D-III
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Hints
In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed?
1. Funaria
2. Pinus
3. Selaginella
4. Wolffia
1. Funaria
2. Pinus
3. Selaginella
4. Wolffia
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Hints
The enzyme required for carboxylation in the Calvin cycle is:
1. Carboxypeptidase
2. PEP carboxylase
3. RuBP carboxylase – oxygenase
4. Hexokinase
1. Carboxypeptidase
2. PEP carboxylase
3. RuBP carboxylase – oxygenase
4. Hexokinase
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Hints
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