Crossing over occurs during (1 point)
Anaphase 1 Metaphase 1 Prophase 1 Prophase 2
Anaphase 1
What type of mutation occurred in the following example? Original DNA: CAT GAT
New DNA: CAT AT (1 point)
Nondisjunction Insertion Substitution Deletion
Deletion
A mutation in which types of cells would only affect the organism and not future generations? (1 point)
Sperm cell and brain cell Nerve cell and skin cell Egg cell and liver cell Sperm cell and egg cell
Nerve cell and skin cell
Mutations in DNA molecules can occur when (1 point)
a DNA enzyme attaches to an RNA codon RNA codons are replaced by DNA nucleotides replication of DNA is exact
a change occurs in DNA nucleotide bases