A) Which type of mutation causes cystic fibrosis? (1 point)
substitution
silent
insertion
deletion
The type of mutation that causes cystic fibrosis is a deletion mutation.
A) Which statement about chromosomes is true? (1 point)
The same number of chromosomes appears in haploid and body cells.
DNA contains chromosomes.
Chromosomes are found in sets of three.
Chromosomes contain DNA
The statement that is true about chromosomes is: "Chromosomes contain DNA."
A) Which modification affects an organism’s expressed characteristics while leaving its
DNA sequence unchanged? (1 point)
epigenetic change
insertion mutation
deletion mutation
substitution mutation