Can you explain the first part a little more
Homologous chromosomes, is a pair of chromosome connected by a centromere. In sexual reproduction, the chromosome of the mother and the chromosome of the father pairs together.
Answer:
Overall Shape: Double Helix
Groups of Molecules Called: nucleotides
4 Nitrogenous Bases: Adenine-Thymine / Guanine-cytosine
Chargaff's rules: A=T, C=G
Backbone: Phosphate and deoxyribose sugar
Bonds: Hydrogen Bonds between base pairs
