Which of the following statements is incorrect?
| 1. | ATP is synthesized through complex V. |
| 2. | Oxidation-reduction reactions produce proton gradient in respiration. |
| 3. | During aerobic respiration, the role of oxygen is limited to the terminal stage. |
| 4. | In ETC (Electron Transport Chain), one molecule of NADH+H+ gives rise to 2ATP molecules, and one FADH2 gives rise to 3 ATP molecules. |
Match List-I with List-II.
| List-I | List-II | ||
| (a) | Protein | I. | C-C double bonds |
| (b) | Unsaturated fatty acid | II. | Phosphodiester bonds |
| (c) | Nucleic acid | III. | Glycosidic bonds |
| (d) | Polysaccharides | IV. | Peptide bonds |
Choose the correct answer from the options given below.
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (iv) | (iii) | (i) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (iv) | (iii) | (ii) |
DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as
1. Single nucleotides
2. Polymorphic DNA
3. Satellite DNA
4. Repetitive DNA
Match List-I with List-II
| List-I | List-II | ||
| (a) | S phase | I. | Proteins are synthesized |
| (b) | G2 phase | II. | Inactive phase |
| (c) | Quiescent stage | III. | Interval between mitosis and initiation of DNA replication |
| (d) | G1 phase | IV. | DNA replication |
Choose the correct answer from the options given below.
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (ii) | (iv) | (iii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (iv) | (ii) | (iii) | (i) |
Identify the correct statement.
1. The coding strand in a transcription unit is copied to an mRNA.
2. Split gene arrangement is characteristic of prokaryotes.
3. In capping, methylguanosine triphosphate is added to the 3' end of hnRNA.
4. RNA polymerase binds with the Rho factor to terminate the process of transcription in bacteria.
Select the correct pair.
1. Cells of medullary rays that form part of a cambial ring - Interfascicular cambium
2. Loose parenchyma cells rupturing the epidermis and forming a lens-shaped opening in the bark - Spongy parenchyma
3. Large colorless empty cells in the epidermis of grass leaves - Subsidiary cells
4. In dicot leaves, vascular bundles are surrounded by large thick-walled cells - Conjunctive tissue
Which of the following statements is incorrect?
| 1. | Grana lamellae have both PSI and PS II. |
| 2. | Cyclic photophosphorylation involves both PS I and PS II. |
| 3. | Both ATP and NADPH+H+ are synthesised during non-cyclic photophosphorylation. |
| 4. | Stroma lamellae have PS I only and lack NADP reductase. |
Now a days it is possible to detect the mutated gene causing cancer by allowing the radioactive probe to hybridise its complementary DNA in clone of cells, followed by its detection using autoradiography because:
| 1. | mutated gene does not appear on a photographic film as the probe has no complementarity with it. |
| 2. | mutated gene does not appear on photographic film as the probe has complementarity with it. |
| 3. | mutated gene partially appears on a photographic film. |
| 4. | mutated gene completely and clearly appears on a photographic film. |
In the exponential growth equation Nt =N0ert, e represents :
1. The base of natural logarithms
2. The base of geometric logarithms
3. The base of number logarithms
4. The base of exponential logarithms
In some members of which of the following pairs of families, pollen grains retain their viability for months after release?
1. Poaceae; Solanaceae
2. Rosaceae; Leguminosae
3. Poaceae; Rosaceae
4. Poaceae; Leguminosae
© 2026 GoodEd Technologies Pvt. Ltd.