Which species of wheat is tetraploid in relation to the
original wheat species?
Chapter 18 Process of Evolution 189
a. A
b. B
c. C
d. D
e. E
Answer: c
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The sum of all chemical reactions in a cell is referred to as ____
Fill in the blank with the appropriate word.
In eukaryotic cells, ribosomes have two locations. They are scattered in the ________ and on the surface of ________.
A. nucleus; Golgi apparatus B. nucleus; endoplasmic reticulum C. cytoplasm; endoplasmic reticulum D. cytoplasm; Golgi apparatus
An enzyme is
A. always a protein. B. not necessary to sustain life in a cell. C. All of the answer choices are correct. D. an organic molecule that catalyzes a cellular reaction. E. used up in a reaction.
Mutations are the original source of new alleles, but
many are __________ or __________. Fill in the blank(s) with the appropriate word(s).