A polysaccharide that is used for storing energy in human muscle and liver cells is _____.
A. glucose
B. glycogen
C. starch
D. chitin
E. cellulose
Ans: B. glycogen
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The major difference between the smooth and rough ER is that ____
a. smooth ER is isolated to the nucleus b. vesicles are found only in the smooth ER c. rough ER contains ribosomes d. smooth ER is the site of polypeptide synthesis e. rough ER is the site of lipid synthesis
In bacillus anthracis the protective antigen (PA)
A. is a protease that inhibits blood clotting B. is a protese that inhibits cell growth C. binds to cells D. is an adenylate cyclase
Animals use auricular muscles to swivel their ears to home in on sounds. Humans have auricular muscles but we can't turn our ears. So why do humans have auricular muscles?
A) They are needed in the development of the human embryo but not in the adult. B) They are still needed to help us swallow and retract our tongue. C) They are vestigial structures we inherited from mammalian ancestors D) People who can wiggle their ears due to auricular muscles have a reproductive advantage.
Explain the differences between chromosome painting and the older, more traditional method of staining chromosomes being prepared for karyotyping. Highlight the way in which each method identifies chromosomes by the unique sequences they contain
What will be an ideal response?