Which of the following is NOT unique to eukaryotes?
a. snRNPs
b. sorting signals on proteins
c. capping the 5' end of mRNA
d. adding a poly(A) tail to mRNA
e. RNA polymerase II
B
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The bracket indicated by the letter "A" in the accompanying figure is ____
a. the epidermis b. a sweat gland c. the dermis d. the hypodermis e. a hair follicle
The assumptions of the Hardy-Weinberg equilibrium principle include all of the following except ________
A) random mating B) no migration C) limited population size D) All of these are assumptions of Hardy-Weinberg.
Which group of microorganisms is most likely to spoil a freshwater trout preserved with salt?
A) psychrophiles
B) facultative halophiles
C) anaerobes
D) thermophiles
E) hyperthermophiles
The nucleus, an organelle found in eukaryotic cells, confines the __________, keeping them separated from other components of the cell
(a) lysosomes (b) chromosomes (c) peroxisomes (d) ribosomes