The answer is the first option- "A-T"
here you go
Explanation:
What do the cell walls of plants and the extracellular matrix of animal cells have in common? They have functional connections with the cytoskeleton inside the cell.
Answer: The means for transmission of disease-causing microorganism is provided by the direct or indirect contact.
Microorganisms can cause disease only once they are transferred to the body. The disease causing microorganisms are termed as pathogens which are transmitted by several ways such as from skin to skin, by nuclei droplets, through blood and body fluids or via air. In vector transmissions the disease is carried by the parasitic insects via animals, air borne transmission occurs when microorganisms move through air or the dust particles, droplet transmission occurs by coughing, sneezing or talking by the person who is infected while indirect transmission occurs by physical contact or by touching contaminated objects.
Answer:
1. RNA
2. Cytosine and guanine
3. RNA
4. Replication
5. Unwinding the double helix
6. DNA polymerase
7. Identical
8. Repair the DNA
9. Changes in nucleotides of a DNA molecule that affect the genetic message
10. The gene for beta-galactosidase turns off.
11. p53
12. A part of DNA that does not code for a functional protein
13. Proteins
14. Transfer RNA
15. The making of an RNA molecule from a DNA strand by pairing of bases of RNA nucleotides with the complementary bases in DNA
16. 3
17. Tertiary
18. Enzymes
19. The reaction slows down.
20. The active site of an enzyme
21. 60%
22. Conserved energy
23. different
24. Gene expression
I hope that this helps you !