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Q. No.If a sample of single stranded DNA contains 23 % adenine bases of total, what is the expected percentage of guanine bases in this sample of DNA?
1.
23
2.
27
3.
46
4.
Cannot be determined on the basis of information given
Subtopic: DNA Double Helix |
From NCERT
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What argument will be most potent to discard proteins as possible molecules for genetic information storage in humans?
1. They have very limited diversity
2. They are not macromolecules
3. They do not replicate
4. They are unstable biomolecules
Subtopic: Search for Genetic Material |
84%
From NCERT
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In an E. coli cell, the enzyme permease:
| 1. | is present only when glucose levels are very low |
| 2. | is present only when lactose is freely available |
| 3. | is present in a low amount all the time |
| 4. | is not required for using lactose as a source of energy by the cell |
Subtopic: Gene Regulation: Lac Operon |
70%
From NCERT
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Consider the two given statements:
| Assertion (A): | Today, DNA from a single cell is enough to perform DNA fingerprinting analysis. |
| Reason (R): | The use of PCR has increased the sensitivity of DNA fingerprinting. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A) |
| 2. | (A) is True but (R) is False |
| 3. | (A) is False but (R) is True |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A) |
Subtopic: DNA Fingerprinting |
80%
From NCERT
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What would not be true for nucleic acids?
| 1. | They are polynucleotides. |
| 2. | Together with polysaccharides and polypeptides, these comprise the true macromolecular fraction of any living tissue or cell. |
| 3. | A nucleotide has three chemically distinct components: a heterocyclic compound, a monosaccharide, and a phosphoric acid or a phosphate. |
| 4. | The hexose sugar found in polynucleotides is either ribose or 2’deoxyribose. |
Subtopic: DNA Double Helix |
64%
From NCERT
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Unequivocal proof that DNA is the genetic material was first proposed by:
1. Wilkins and Franklin
2. Frederick Griffith
3. Alfred Hershey and Martha Chase
4. Avery, Macleod and McCarthy
1. Wilkins and Franklin
2. Frederick Griffith
3. Alfred Hershey and Martha Chase
4. Avery, Macleod and McCarthy
Subtopic: Search for Genetic Material |
81%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
Expressed Sequence Tags (ESTs) refers to:
1. Certain important expressed genes.
2. All genes that are expressed as RNA.
3. All genes that are expressed as proteins.
4. All genes whether expressed or unexpressed
1. Certain important expressed genes.
2. All genes that are expressed as RNA.
3. All genes that are expressed as proteins.
4. All genes whether expressed or unexpressed
Subtopic: Human Genome Project |
68%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
What is the role of RNA polymerase III in the process of transcription in Eukaryotes?
1. Transcription of only snRNAs
2. Transcription of rRNAs (28S, 18S and 5.8S)
3. Transcription of tRNA, 5 srRNA and snRNA
4. Transcription of precursor of mRNA
1. Transcription of only snRNAs
2. Transcription of rRNAs (28S, 18S and 5.8S)
3. Transcription of tRNA, 5 srRNA and snRNA
4. Transcription of precursor of mRNA
Subtopic: Transcription |
81%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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Subtopic: Translation |
63%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
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 incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid. |
| Statement II: | In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome. |
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: DNA Packaging |
75%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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