Irene knows her blood type is A, but William does not know his blood type. However, William knows that his mother and father both had blood type B. Irene and William's first child is a boy with type O blood. Based on this information, William's blood type could be
A. B only
B. either B or O
C. O only
D. either AB or O
E. A only
B. either B or O
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Cap
A. is involved in positive control. B. stands for cyclic amp protein. C. works in conjunction with cAMP. D. is involved in negative control. E. is involved in positive control AND works in conjunction with cAMP.
The four geologic eras are directly subdivided into
A) eons. B) periods. C) plates. D) sub-eras. E) epochs.
Which of the following statements about the structure or composition of DNA is FALSE?
A. DNA is a double helix. B. Complementary base-pairing occurs between pyrimidine and purine bases. C. The amount of thymine closely approximates that of guanine within a particular organism. D. Each nucleotide within a DNA strand is separated by about 0.34 nm. E. Adenine pairs with thymine and guanine with cytosine.
How many molecules of G3P are required to regenerate RuBP?
a. one b. three c. five d. six