What would result if an error inside gastrulation caused too few cells inside the archenteron?
A. Too little ectoderm, resulting in missing nervous system or skin
B. Problems in muscle development
C. Too little protoderm, resulting in missing organs
D. Too little endoderm, resulting in missing gut and organs
Answer: D
You might also like to view...
In terms of regulation of gene expression, tryptophan and allolactose are examples of ________ molecules
A) repressor B) effector C) inducer D) operator E) terminator
Which of the following statements accurately describes why Taq polymerase is used in PCR?
A. It has regions that are complementary to the primers. B. It is heat stable and can withstand the heating step of PCR. C. It binds more readily than other polymerases to the primers. D. Only minute amounts are needed for each cycle of PCR.
The ________ joints have no joint cavity and usually do not permit movement. Sutures between skull bones are this kind of joint
Fill in the blank(s) with correct word
Why are restriction enzymes that produce sticky ends valuable?
A) The ends produced will stick to any complementary DNA from any source. B) They produce ends that stick only to plasmid DNA. C) Sticky-ended DNA is easier to amplify by PCR. D) Sticky-ended DNA is easier to replicate in cells.