Neet Biology [2024]

Q1. Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. CO₂
D. ATP
E. NADPH
Choose the correct answers from the options given below:

Q2. Spindle fibers attach to kinetochores of chromosomes during

Q3. Buliform cells are responsible for

Q4. What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism?
A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism.
B. It may get integrated into the genome of the recipient.
C. It may multiply and be inherited along with the host DNA.
D. The alien piece of DNA is not an integral part of chromosome.
E. It shows ability to replicate.
Choose the correct answer from the options given below:

Q5. Given below are two statements:
Statement I : Bit toxins are insect group specific and coded by a gene cry IAc.
Statement II : Bit toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:

Q6. List of endangered species was released by

Q7. Identify the part of the seed from the given figure which is destined to form root when the seed germinates.

Q8. Match List I with List II.
| List I | List II |
| A. Clostridium butylicum | I. Ethanol |
| B. Saccharomyces cerevisiae | II. Streptokinase |
| C. Trichoderma polysporum | III. Butyric acid |
| D. Streptococcus sp. | IV. Cyclosporin-A |
Choose the correct answer from the options given below:

Q9. Identify the type of flowers based on the position of calyx, corolla and androectum with respect to the ovary from the given figures (a) and (b).

Q10. Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin

Q11. A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

Q12. Which one of the following is not a criterion for classification of fungi?

Q13. The lactose present in the growth medium of bacteria is transported to the cell by the action of:

Q14. In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?

Q15. Given below are two statements:
Statement I: Parenchyma is living but collenchyma is dead tissue.
Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms.
In the light of the above statements, choose the correct answer from the options given below: