How are polypeptide chains in antigens bound together?
a. Polypeptide chains form hydrogen bonds.
b. Serine amino acids form molecular bonds.
c. Cysteine amino acids form molecular bonds.
d. Polypeptide chains do not bind in antigens.
c. Cysteine amino acids form molecular bonds.
You might also like to view...
To see if a growth-promoting factor was released from blood platelets, cells called fibroblasts were placed in a dish containing liquid cell culture medium
The medium was supplemented with either serum (collected from blood that had been allowed to clot) or plasma from blood in which the platelets had not been activated during the clotting process. The number of cells in each culture is shown in the graph. Reference: Ref 9-2 How many cells are there on Day 3 in the culture that contains serum? A. 80,000 B. 800,000 C. 40,000 D. 400,000
Your father has type B blood. Your mother has type O blood. You get tested and learn that your blood
is also type O. What does this tell you?
a. You were adopted and your parents didn't tell you. b. Your mother had a secret affair. c. Your father's genotype is IBi and your mother's genotype is ii. d. Your father's genotype is IBIB and your mother's genotype is ii. e. Your father's genotype is IAIB and your mother's genotype is ii.
The ELISA is commonly used for diagnosing salmonellosis.
Answer the following statement true (T) or false (F)
Which of the following statements best describes the jawless fishes?
A. Endotherms that have a smooth nonscaly skin. B. Ectotherms that have a smooth nonscaly skin. C. Vertebrates that have scales and are ectothermic. D. Ectotherms that have a bony skeleton.