5. Which of the following statement is correct? a) Termination codon has no tRNA
b) Activated amino acid binds to the 5' end of respective tRNA molecule
c) CTP is required for amino acid activation
d) there is only one amino acyl-tRNA synthetase in a cell

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

What are the possible blood types among the children of parents that are ab and ii? oa) types a and b ob) types a, b, and ab c) types a, b, and o od) types a, b, ab, and o

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine