Answer: 1) The correct option is D. Your Chromosomes. Genes are the segments of DNA that are present on the chromosomes and correspond to specific trait of the organism ( like genes for eye color).
2) The correct option is B) Double helix. DNA ( deoxyribonucleic acid) is the genetic material of the living organisms. It is made up of two strands of nucleotides, which are complementary to each other and give a shape of double helical structure.
3) The correct option is A) Chromosomes are made of DNA. Chromosomes are the thread like structures, which are made up of DNA. These structures possess essential information of the organism in the form of genes that are found on them.
4) The correct option is A) Genes. Genes are the segments of DNA that code fro a specific protein, which corresponds to a particular trait of the organism. They are passed from parents to their offsprings. Therefore, specific traits ( like eye color) are inherited by the offsprings from their parents.