Answer:
A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced.
Guanine does not pair with Thymine. In a DNA strand, adenine (A) pairs with thymine (T), while guanine (G) pairs with cytosine (C). Therefore, that must mean there was a problem or a mistake with the duplication of the strand.
<span>If a nurse notices that an accident victim cannot clench his teeth, there is a good chance that his trigeminal nerve has been affected. This nerve is located inside the brain and its primary purpose is to transmit sensations from a person's face to the brain. Damage to this nerve could cause the patient to be unable to clench their teeth.</span>
Answer:
the vaccine causes the immune system to produce antibodies to the virus that causes the measles
