Which DNA mutation might cause a change in the amino acid sequence of the encoded protein?
a. insertion of one additional nucleotide
b. neutral
c. a mistake by RNA polymerase during DNA replication
d. addition of a chromosome
e. loss of a chromosome
ANSWER: a
You might also like to view...
Why is De Queiroz's general lineage species concept receiving significant support? Select all that apply.
_____ It includes criteria from all other species concepts. _____ Many scientists would like to have a single, agreed upon species concept. _____ It is not meant to be used for extinct species. _____ It can incorporate molecular, ecological, and morphological factors into a single species concept. _____ It presents clear rules on the number of differences needed to qualify two populations as two distinct species.
Oxygen moves from alveoli to the bloodstream
a. because the concentration of oxygen is greater in alveoli than in the blood. b. mainly due to the activity of carbonic anhydrase in the red blood cells. c. because of its attraction to hemoglobin. d. to counter the high concentration of CO2 in the blood. e. because of all of these
Which of the following RNA virus families include the smallest viral pathogens in animals?
A) Picornaviridae B) Coronaviridae C) Paramyxoviridae D) Arenaviridae E) Rhinoviridae
The brain is a part of ______ nervous system.
a. autonomic motor b. central c. sensory d. somatic motor