Transfer RNA A. carries an amino acid to the ribosome.

B. synthesizes amino acids as they are needed.

C. produces codons to match the correct anticodons.

A.

Explanation:

It binds to an amino acid and holds it in place on a ribosome until it is incorporated into a protein during translation; one end carries the amino acid and the opposite end is the anticodon which attaches to the messenger RNA. thymine and cytosine bases which have a single ring.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

it creates acid rain