Q. No.1. \(\gamma\)-radiation
2. Electromagnetic radiation
3. UV-Vis spectroscopy
4. X-ray diffraction
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| (a) | Euchromatin is loosely packed chromatin. |
| (b) | Heterochromatin is transcriptionally active. |
| (c) | Histone octomer is wrapped by negatively charged DNA in nucleosome. |
| (d) | Histones are rich in lysine and arginine. |
| (e) | A typical nucleosome contains 400 bp of DNA helix. |
Choose the correct answer from the options given below:
1. (a), (c), (e) only
2. (b), (d), (e) only
3. (a), (c), (d) only
4. (b), (e) only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOne of the strands of double stranded DNA has base composition as follows: 15% A, 15% T, 40%G and 30%C. What will be the percentage of these bases in the complementary strand ?
1. 15% A, 15% T, 30% G , 40% C
2. 15% A, 30% T, 40% G , 15% C
3. 15% A, 15% T, 40% G , 30% C
4. 15% A, 40% T, 15% G , 30% C
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. 1
2. 3
3. 2.5
4. 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyComplete the flow chart on central dogma
| 1. | (a) - Replication; (b) - Transcription; (c) - Translation; (d) - Protein |
| 2. | (a) - Transduction; (b) - Translation; (c) - Replication; (d) - Protein |
| 3. | (a) - Replication; (b) - Transcription; (c) - Transduction; (d) - Protein |
| 4. | (a) - Transcription; (b) - Replication; (c) - Transcription; (d) - Transduction |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?
| 1. | T:30 ; G:20 ; C:20 | 2. | T:20 ; G:25 ; C:25 |
| 3. | T:20 ; G:30 ; C:20 | 4. | T:20 ; G:20 ; C:30 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is bp, then the length of the DNA is approximately:
| 1. | 2.5 meters | 2. | 2.2 meters |
| 3. | 2.7 meters | 4. | 2.0 meters |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is correct?
1. Adenine pairs with thymine through one H-bond.
2. Adenine pairs with thymine through three H-bonds.
3. Adenine does not pair with thymine.
4. Adenine pairs with thymine through two H-bonds.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the polynucleotide chain of DNA, a nitrogenous base is linked to the –OH of:
| 1. | 2'C pentose sugar | 2. | 3'C pentose sugar |
| 3. | 5'C pentose sugar | 4. | 1'C pentose sugar |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat will be the sequence of mRNA produced by the following stretch of DNA?
3' ATGCATGCATGCATG 5' TEMPLATE STRAND
5' TACGTACGTACGTAC 3' CODING STRAND
1. 3' AUGCAUGCAUGCAUG 5'
2. 5' UACGUACGUACGUAC 3'
3. 3' UACGUACGUACGUAC 5'
4. 5' AUGCAUGCAUGCAUG 3'
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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