The smallest unit that can evolve is a(n) __________.
a. population
b. species
c. genotype
d. individual
e. family
Answer: a. population
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The most abundant protein in mammals is collagen. This strong, ropelike molecule is particularly abundant in which tissue?
A. heart muscle B. spinal cord C. ligaments D. skeletal muscle
What makes a prion unique as an infectious particle?
What will be an ideal response?
The anterior pituitary responds to hormones produced by which organ?
a. pancreas b. adrenal glands c. hypothalamus d. thalamus
If one compares the base sequences of related genes from different species, one is likely to find that corresponding ________ are usually conserved, but the sequences of ________ are much less well conserved
A) exons; introns B) introns; exons C) introns; proteins D) chaperons; exons E) introns; chaperons