A structure that appears in a transmission electron micrograph but is NOT actually present in the specimen is known as a(n)
A) antigen.
B) biofilm.
C) artifact.
D) refraction.
E) mordant.
C
Biology & Microbiology
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Homeotic genes generally control
a. X chromosome inactivation. b. mapping the basic body plan. c. hormone synthesis. d. dosage compensation. e. none of these
Biology & Microbiology
Which recombinant protein is widely used to digest milk proteins for making cheeses?
A) Casein B) Chymosin C) Erythropoietin D) Insulin E) DNA ligase
Biology & Microbiology
The release of cortisol during the fight or flight response occurs at the end of the _____ pathway.
A. pituitary, Hypothalamus, Adrenal cortex B. pituitary, Adrenal cortex, Hypothalamus C. hypothalamus, Pituitary, Adrenal cortex D. adrenal Cortex, Hypothalamus, Pituitary
Biology & Microbiology
How many chromosomes should be in an embryo nucleus?
A) 8 B) 16 C) 24 D) 32
Biology & Microbiology