Q. No.
The similarity between DNA and RNA is that both:
1. are polymers of nucleotides
2. have a similar pyrimidine
3. have similar sugars
4. genetic material
During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:
1. TCTGG
2. UAUGC
3. UATGC
4. TATGC
Which one of the following pairs of nitrogenous bases of nucleic acids is wrongly matched with the category mentioned against it?
1. Thymine, Uracil - Pyrimidines
2. Uracil, Cytosine - Pyrimidines
3. Guanine, Adenine - Purines
4. Adenine, Thymine - Purines
The 3'-5' phosphodiester linkages inside a polynucleotide chain serve to join:
| 1. | One nucleoside with another nucleoside |
| 2. | One nucleotide with another nucleotide |
| 3. | One nitrogenous base with pentose sugar |
| 4. | One DNA strand with the other DNA strand |
| List- I | List-II | ||
| (a) | Bacteriophage \(\phi \times 174\) | (i) | 48502 base pairs |
| (b) | Bacteriophage lambda | (ii) | 5386 nucleotides |
| (c) | Escherichia coli | (iii) | 3.3 × 109 base pairs |
| (d) | Haploid content human DNA | (iv) | 4.6 × 106 base pairs of |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (ii) | (iv) | (i) | (iii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (i) | (ii) | (iv) | (iii) |
Purines found both in DNA and RNA are:
| 1. | Cytosine and thymine | 2. | Adenine and thymine |
| 3. | Adenine and guanine | 4. | Guanine and cytosine |
The term 'Nuclein' for the genetic material was used by :
1. Franklin
2. Meischer
3. Chargaff
4. Mendel
In sea urchin DNA, which is double-stranded 17% of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are:
2. G/17%, A/16.5%, T/32.5%
3. G/17%, A/33%, T/33%
4. G/8.5%, A/50%, T/24.5%
| 1. \(6.6 \times 10^{6} \mathrm{bp}\) | 2. \(3.3 \times 10^{9} \mathrm{bp}\) |
| 3. \(6.6 \times 10^{9} \mathrm{bp}\) | 4. \(3.3 \times 10^{6} \mathrm{bp}\) |
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