1) Define nucleic acids
- Nucleic acids are polynucleotide strands with high atomic weight and inherit the character from parents to offspring having self replicatication capacity. [ Nucleic acids consist of either one or two long chains of repeating units called nucleotides, which consist of a nitrogen base (a purine or pyrimidine) attached to a sugar phosphate. The two main nucleic acids are DNA and RNA. ]
2) How many types of nucleic acids are there ?
- 2 types namely DNA & RNA
3) Name the nitrogenous bases found in DNA
- GTAC
4) Name the nitrogenous base in RNA
- GUAC
5) What is a nucleoside?
- It is a complex structure where any one nitrogenous base combines with pentose sugar with the help of glycosidic bond.
6) Name the nucleosides of DNA.
- Adenosine, Cytidine, Uridine, and Guanosine.
7) Name the Nucleotides of DNA
- dAMP, dTMP, dCMP, dGMP
8) What is a nucleotides?
- These are complex structure formed from the nitrogeuous bases, pentose sugar and a phosphate group.
9) Name the bond that joins the two strands of DNA.
- Hydrogen bond between complementary bases.
10) Name the plant material used in lab to observe nucleic acids.
- The lower epidermis of onion fleshy leaves.
11) Name the stain used in this technique.
- Aceto-orcein or Acetorcein
12) During division, what happens to DNA?
- The thin, long, thread like DNA becomes thick, short and condensed chromosomes.
13) What are the building blocks of DNA?
- Nucleotides are the building blocks of DNA.
14) What the difference between DNA & RNA with respect to bases?
- Thymine is found in DNA & Uracil in RNA.
