Which of the following characteristics is NOT
shared by both bony fish and cartilaginous
fish?
a. scales
b. paired fins
c. movable fins
d. muscular tails
e. all of these are characteristics of both bony
and cartilaginous fish
C
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About one in three people will be diagnosed with cancer at some time in his/her life
a. True b. Fal
During molecular cloning, a gene of interest (insulin) is inserted into a bacterial structure called a ________ and enters a bacterial cell through a process called ________
A) chromosome; electrophoresis B) nucleus; transformation C) plasmid; transcription D) plasmid; transformation E) genome; transformation
The antibiotic streptomycin prevents protein synthesis in prokaryotes. Which cell component would be affected by this antibiotic?
A) ribosome B) cell membrane C) Golgi apparatus D) cell wall
When we say an animal has an "open circulatory system," this means that:
A) movement of the animal is solely responsible for moving circulatory fluid. B) there are no vessels–blood simply fills all spaces inside the coelom. C) a small amount of blood may leak out of vessels. D) blood flows out of vessels and into spaces or sinuses. E) the animal has a single-chambered heart, so blood mixes from all areas.