Salmonella typhimurium can change flagellar proteins to evade immune response by host systems. What is this process called?
A. lysogeny
B. bacterial transduction
C. phase variation
D. transposition
E. cointegration
C
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Which statement most accurately describes incomplete metamorphosis?
a. A larva grows and turns into a pupa, and then an adult. b. Development is never fully complete and an immature adult is eventually hatched. c. An egg hatches into a nymph that gradually takes on the adult form over the course of several molts. d. Insects hatch from an egg looking like a tiny adult and they simply grow bigger with each molt. e. There is no such thing as incomplete metamorphosis, since all eggs eventually become functional adults
Which of the following is required to make complementary DNA (cDNA) from RNA?
A) restriction enzymes (endonucleases) B) gene cloning C) DNA ligase D) reverse transcriptase
Kinetic energy is like sitting at the top of a hill, and potential energy is like coasting down that hill on your bike
Indicate whether the statement is true or false
Which of these events occurs first in seed germination?
A) Cell division occurs in the embryo and growth starts. B) Mitochondria multiply and provide energy for growth processes. C) Water is taken up. D) Oxygen is produced and proteins are synthesized.