The tails of some bacteriophage ________.
A. rotate like flagella to drive the phage genome into the cytoplasm of the host
B. include a tail sheath that shortens
C. exhibit oar-like motion that drives the phage genome into the cytoplasm of the host
D. None of the choices are correct.
Answer: B
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Which group of tiny marine organisms have the simplest body and smallest genome of all modern animals?
a. sponges b. choanoflagellates c. placozoans d. cnidarians e. flatworms
Which cell feature is absent in bacterial cells?
a. ribosomes b. cytoplasm c. nucleoid d. nucleus e. DNA
Geneticists use this term when explaining how genetic information is converted into physical features of a cell or organism.
A. gene expression B. gene replication C. genetic mutation D. genetic transcription
The Y-shaped part of the DNA molecule where the actual replication process occurs is called the replication ________.
A. splice B. junction C. tongue D. fork