Chromosomes contain genes that are responsible for the expression of certain traits. True true False false Single Genes must contain information that influences the characteristics of an organism when inherited. The nature of this genetic information was explored by Frederick Griffith in 1958 True false False true Single DNA is a polymer of nucleotide monomers made of three essential components: (a) deoxyribose, a 5-carbon sugar; (b) phosphate backbone; and (c) nitrogenous base. True false False true Single Purines are further classified into guanine (G) and adenine (A), while pyrimidines are further classified into thymine (T) and cytosine (C). True true False false Single DNA is a single helix structure about 2 nm in diameter True false False true Single Chromatids refer to the strands of a chromosome that contain a copy of the DNA molecule. True true False false Single The centromere is the constricted region of the chromosome. This region facilitates the proper segregation of chromosomes True true False false Single Because of the protective measures employed by the body, there are no recorded cases where the genetic material is altered or mutations occur True false False true Single Substitution refers to a change in one DNA nucleotide into another nucleotide True false False true Single Insertion refers to the addition of DNA nucleotides into the sequence, while deletion refers to the removal of DNA nucleotides into the sequence. True true False false Single