Consider the following tissues in the stellar region of a stem showing secondary growth.
(A) Primary xylem
(B) Secondary xylem
(C) Primary phloem
(D) Secondary phloem
Arrange these in the correct sequence of their position from pith towards cortex.
(A) Primary xylem
(B) Secondary xylem
(C) Primary phloem
(D) Secondary phloem
Arrange these in the correct sequence of their position from pith towards cortex.
| 1. | (A), (B), (D), (C) | 2. | (B), (A), (C), (D) |
| 3. | (A), (B), (C), (D) | 4. | (B), (A), (D), (C) |
Subtopic: Dicot Stem |
Level 3: 35%-60%
NEET - 2023
Hints
Which out of the following statements is incorrect?
| 1. | Grana lamellae have both PS I and PS II |
| 2. | Cyclic photophosphorylation involved both PS I and PS II |
| 3. | Both ATP and NADPH + H+ are synthesised during non-cyclic photophosphorylation |
| 4. | Stroma lamellae lack PS II and NADP reductase |
Subtopic: Light Reaction: Electron Transport |
80%
Level 1: 80%+
NEET - 2023
Hints
In angiosperms, the correct sequence of events leading to the formation of female gametophyte in the ovule is:
Choose the correct answer from the options given below:
| A. | 3 successive free nuclear divisions in functional megaspore. |
| B. | Degeneration of 3 megaspores |
| C. | Meiotic division in megaspore mother cell |
| D. | Migration of 3 nuclei towards each pole. |
| E. | Formation of a wall resulting in seven celled embryosac. |
| 1. | (A), (B), (C), (D), (E) | 2. | (C), (E), (A), (D), (B) |
| 3. | (B), (C), (A), (D), (E) | 4. | (C), (B), (A), (D), (E) |
Subtopic: Pistil: Ovule | Pistil: Female Gametophyte |
77%
Level 2: 60%+
NEET - 2023
Hints
Consider the two statements:
1. Only I
2. Only II
3. Both I and II are correct
4. Both I and II are incorrect
| I: | All pteridophytes are heterosporous |
| II: | All gymnosperms are homosporous |
2. Only II
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Pteridophytes | Gymnosperms |
75%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Which of the following statement is incorrect about Agrobacterium tumefaciens ?
| 1. | It is used to deliver gene of interest in both prokaryotic as well as eukaryotic host cells. |
| 2. | 'Ti' plasmid from Agrobacterium tumefaciens used for gene transfer is not pathogenic to plant cells. |
| 3. | It transforms normal plant cells into tumor cells. |
| 4.. | It delivers 'T-DNA' into plant cell. |
Subtopic: Transforming Plant & Animal Cell |
60%
Level 2: 60%+
NEET - 2023
Hints
The given figure shows the transverse section of:
| 1. | Dicot root | 2. | Monocot root |
| 3. | Dicot stem | 4. | Monocot stem |
Subtopic: Anatomy of Root |
69%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Kanamycin | (I) | Delivers genes into animal cells |
| (B) | ClaI | (II) | Selectable marker |
| (C) | Disarmed retroviruses | (III) | Restriction site |
| (D) | Kanamycin Rgene | (IV) | Antibiotic resistance |
Choose the correct answer from the options given below:
| Options: | (A) | (B) | (C) | (D) |
| 1. | (II) | (III) | (I) | (IV) |
| 2. | (III) | (I) | (IV) | (II) |
| 3. | (IV) | (III) | (I) | (II) |
| 4. | (II) | (IV) | (I) | (III) |
Subtopic: Cloning Vector |
54%
Level 3: 35%-60%
NEET - 2023
Hints
Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is true but Statement II is false
2. Statement I is false but Statement II is true
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false
| Statement I: | The process of copying genetic information from one strand of the DNA into RNA is termed as transcription |
| Statement II: | A transcription unit in DNA is defined primarily by the three regions in the DNA i.e. a promoter, the structural gene and a terminator. |
1. Statement I is true but Statement II is false
2. Statement I is false but Statement II is true
3. Both Statement I and Statement II are true
4. Both Statement I and Statement II are false
Subtopic: Transcription |
89%
Level 1: 80%+
NEET - 2023
Hints
Which scientist conducted an experiment with 32p and 35s labelled phages for demonstrating that DNA is the genetic material?
| 1. | James D. Watson and F.H.C Crick |
| 2. | A.D. Hershey and M.J. Chase |
| 3. | F. Griffith |
| 4. | O.T. Avery, C.M. MacLeod and M. McCarty |
Subtopic: Search for Genetic Material |
84%
Level 1: 80%+
NEET - 2023
Hints
A certain plant homozygous for yellow seeds and red flowers was crossed with a plant homozygous for green seeds and white flowers. The F1 plants had yellow seeds and pink flowers. The F1 plants were selfed to get F2 progeny. Assuming independent assortment of the two characters, how many phenotypic categories are expected for these characters in the F2 generation?
| 1. | 9 | 2. | 16 |
| 3. | 4 | 4. | 6 |
Subtopic: Dihybrid Cross: General Consideration |
Level 3: 35%-60%
NEET - 2023
Hints
© 2026 GoodEd Technologies Pvt. Ltd.