Suppose that the first part of a new polypeptide chain being produced in a eukaryotic cell has a signal
peptide. Which of the following would you associate with the location of translation to form that
polypeptide?
a. cytoplasm only
b. first cytoplasm, then rough ER
c. Golgi apparatus only
d. first rough ER, then Golgi apparatus
e. rough ER only
B
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The spores of a fern are
(a) produced by mitosis within the sporangium. (b) diploid cells. (c) the first cells of the gametophyte generation. (d) both a and b.
An example of a phenotypic trait where observation of phenotype can easily identify the genetic variation is:
A. color markings in certain invertebrates. B. human skin color. C. human blood type. D. color markings in certain invertebrates and human blood type. E. human skin color and blood type.
The enzyme ____________________ converts prothrombin to thrombin. Fill in the blank(s) with the appropriate word(s)
The ____________________ consists of tissues that cover and protect the plant's exposed surfaces.
A. phloem B. ground tissue system C. dermal tissue system D. vascular tissue system E. sclerenchyma