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
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) |
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. |
I: | Identifying all the genes that are expressed as RNA is referred to as Expressed Sequence Tags. |
II: | The blind approach of simply sequencing the whole set of genome that contained all the coding and non-coding sequence, and later assigning different regions in the sequence with functions is referred to as Sequence Annotation. |
1. | it should be able to express itself in the form of 'Mendelian characters' |
2. | it should be able to generate its replica |
3. | it should be unstable structurally and chemically |
4. | it should provide the scope for slow changes that are required for evolution |