Birds and reptiles save water by eliminating
__________ rich wastes as uric acid crystals. Fill in the blank(s) with the appropriate word(s).
Answer: nitrogen
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The autoimmune response to desmosomes or desmosomal components (not hemidesmosomes) leads to a blistering skin disease known as
A) pemphigus. B) Ehlers?Danos syndrome. C) syndecan. D) junctional epidermolysis bullosa. E) listeriosis.
DNA replication occurs
a. between the gap phases of interphase. b. immediately before prophase of mitosis. c. during prophase of mitosis. d. during prophase of meiosis. e. at any time during cell division.
The chromosomes are aligned midway between the
spindle poles at a. anaphase. b. metaphase. c. interphase. d. prophase. e. telophase.
You are setting up a PCR reaction and add a primer for one end of the target sequence, but you forget to add the primer for the other end of the target sequence. If you added the other necessary components, what do you expect to observe after running the
PCR reaction for 40 cycles? A) The PCR reaction will produce billions of copies of the target DNA. B) The PCR reaction will produce millions of copies of the target DNA. C) The PCR reaction will produce one copy of the target DNA. D) The PCR reaction will produce zero copies of the target DNA.