Question 1
New genetic combinations result from
◦ crossing over.
◦ sexual reproduction.
◦ mutations.
◦ exchange of genes between different species.
◦ all of these
Question 2
Of all the different codons that exist, three of them
◦ are involved in mutations.
◦ do not specify a particular amino acid.
◦ cannot be copied.
◦ provide punctuation or instructions such as "stop."
◦ do not specify a particular amino acid but do provide punctuation or instructions such as "stop."