1. A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion? TTA TCG AGC TCG AGC TTA TAG AGC TTT CG 2. A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation? CCA TAA CT CCC TAG CT CCA TAG CT CCA ATA GCT 3. Which type of mutation causes cystic fibrosis? deletion insertion substitution silent 4. Which statement about chromosomes is true? Chromosomes are found in sets of three. The same number of chromosomes appears in haploid and body cells. Chromosomes contain DNA. DNA contains chromosomes. 5. Which modification affects an organism's expressed characteristics while leaving its DNA sequence unchanged? insertion mutation substitution mutations deletion mutation epigenetic change
