Distinguish between Centrosome and Centromere

Distinguish between Haploid and Diploid

Given below are the sets of four terms. Choose the odd one and write the category of the remaining terms:

(a) Adenine, Guanine, Adrenaline, Thymine

(b) Pentose sugar, Histones, Phosphate group, Nitrogenous bases

(c) Metaphase, Anaphase, Interphase, Telophase

(d) G₁ phase, M phase, G₂ phase, S phase

(e) Chromoplast, Chromosome, Chloroplast, Leucoplast

Given below is a schematic diagram of a portion of DNA.

(a) How many strands are shown in the diagram?

(b) How many nucleotides have been shown in each strand?

(c) Name the parts numbered 1,2,3,4 and 5 respectively.

(d) Name the DNA unit constituted by the parts 1, 2 and 3 collectively.