Please match the types of mutations with the statements that most accurately describe them, to test your understanding of their causes.
Frameshift mutation
A) Random change in the DNA arising from errors in replication that occur without a known cause
B) Result from exposure to known mutagens, which are primarily physical or chemical agents that damage DNA
C) Changing of single base in the DNA code that may result in the placement of a different amino acid
D) Addition or deletion of bases that changes the reading of mRNA codons
D) Addition or deletion of bases that changes the reading of mRNA codons
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Riboswitches regulate transcription, rather than translation, in cells.
Answer the following statement true (T) or false (F)
Mitochondria use inspired oxygen as an electron acceptor in the process known as:
a. pulmonary ventilation. b. cellular respiration. c. external respiration. d. internal respiration. e. anaerobic respiration.
Oxygen is brought into the body by the respiratory system. Which system transports the oxygen to cells where it is needed?
a) lymphatic system b) immune system c) circulatory system d) integumentary system
Behaviors that do not require environmental input for their development are called:
a. learned behaviors. b. complex behaviors. c. reciprocal altruism. d. fixed action patterns. e. instincts.