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 |
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. | Probe | 2. | BAC |
3. | YAC | 4. | PBR322 |
Statement I: | RNA mutates at a faster rate. |
Statement II: | Viruses having RNA genome and shorter life span mutate and evolve faster. |
1. | Statement I is false but Statement II is true. |
2. | Both Statement I and Statement II are true. |
3. | Both Statement I and Statement II are false. |
4. | Statement I is true but Statement II is false. |