A cytotoxic T cell recognizes and destroys cells infected by a virus. They are also responsible for killing cancer cells too.
Answer: The lipid bilayer forms a barrier to molecules because it consists of closely-packed molecules with long nonpolar hydrocarbon chains.
Explanation:
1.) is a 2.) is probably B. and 3.) is most likely a
Answer:
The correct option is b. DNA ligase
Explanation:
DNA ligase is an enzyme that joins DNA fragments. If two DNA fragments or molecules have complementary ends, the ligase can join them together to form a single and intact DNA molecule, without interruptions. This is because the ligase enzyme seals the space between the molecules to form a single DNA fragment.
The others enzymes have different functions:
DNA helicase is characterized by separating DNA from double strands into single strands and acts in DNA replication.
ATP methylase plays an important role in DNA replication when determining the beginning of replication that has already been replicated or not.
DNA polymerase is an enzyme that is responsible for catalyzing the polymerization of the new strand of DNA during the replication of this molecule.
Here are the answers in chronological order:
1.28
2.ovaries
3. Fallopian tube
4. ovaries
5. ovary/ovum
6.ovary/ovum
7. ovulation
8. egg
9. uterus
10. vascular endometrial tissue
11. Fallopian tube
12. sperm cell
13. uterus
14. fertilized
15.blood
16. uterine
17. cervix and vagina
18. 28
19. menstruation