Answer:
D. they are usually dominant or recessive.
Explanation:
alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.
Explanation:
They both are responsible with the digestion.
Answer:
1. Damaged bases are recognized.
2. Part of a single strand is excised.
3. DNA polymerase I adds correct bases by 5′ to 3′ replication.
4. DNA ligase seals the new strand to existing DNA.
Explanation: