In most mammals the DNA found in mitochondria is inherited from
A. either the mother or father depending on the result of meiosis.
B. the mother only.
C. neither parent.
D. the mother and father.
E. the father only.
B. the mother only.
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The differences between males and females of a species are called ________
A) sexual morphism B) male/female dimorphism C) sexual differentiation D) sexual dimorphism
How did Darwin refer to changes in a population over many generations?
a. genetic drift b. descent with modification c. differential reproduction d. mutations
On Pacific coasts, the population of mussels is kept in check by predation from:
a. sea otters. b. sea stars. c. sea urchins. d. barnacles. e. supralittoral isopods.
In DNA replication, a primer is _____
a. what the original DNA strands are called b. an enzyme that breaks the hydrogen bonds between base pairs c. a short piece of nucleic acid that serves as an attachment point for DNA polymerase
d. a molecule that provides the energy for nucleotide attachments e. a regulatory protein that turns on the gene that starts DNA replication