A scientist is trying to coax stem cells to differentiate into muscle to use as a therapy for muscular dystrophy. He looks at his Petri dish and is excited to see the cells contracting! The cells appear striated and multinucleate. What type of muscle are they?
A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Involuntary muscle
Answer: A
Biology & Microbiology
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The Lac repressor protein binds to the:
A. operator in the presence of allolactose. B. lacZ gene in the presence of allolactose. C. operator in the absence of allolactose. D. operator regardless of the presence or absence of allolactose.
Biology & Microbiology
When all individuals in a population with a certain illness have the same mutation, which present-day patients inherited from shared ancestors, it is an evidence of
A) random mating. B) migration. C) population bottlenecks. D) founder effect.
Biology & Microbiology
Cryptochrome absorbs blue light. Indicate whether the statement is true or false
Biology & Microbiology
Sponges and worms belong to the domain ________
Fill in the blank(s) with correct word
Biology & Microbiology