To produce food and energy for the cell
Answer: The slope of the line that passes through the points (-4, -4) and (4,8) is 3/2
Answer: "Decreasing the salt concentration of the solution lowers DNA's melting point (Tm)" is not a true statement
Explanation:
Increasing salt concentration would lower the DNA's melting point (Tm), not otherwise.
For instance:
- In 8M urea (8M means 8 Moles per dm3), Tm is decreased by nearly 20°C.
- 95% formamide at room temperature would completely denature the double stranded DNA.
Thus, higher concentration of salts like urea or formamide lowers Tm, not otherwise
Answer:
An <u>antibody</u> is a protein that is produced by the <u>immune system.</u> Their main job is to protect the body from invaders like bacteria, viruses, and parasites, which are collectively called, <u>antigens.</u> Chemical substances are also considered an <u>antigen.</u> These antigens trigger the production of antibodies as an immune response and seek and destroy them. An antigen like a virus encounters a <u>B-lymphocyte</u> (B-cell) first, which will produce antibodies that matches it. These antibodies will stick to the virus, marking them for the t-lymphocytes to recognize and attack.