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