If the probability of being blood-type A is 1/8 and the probability of being blood-type O is 1/2, what is the probability of being either blood-type A or blood-type O?

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#Question id: 489

#Unit 1. Molecules and their Interaction Relevant to Biology

An enzyme used in both glycolysis and gluconeogenesis is:

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#Question id: 812

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is not known to be involved in the process of assisted folding of proteins?

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#Question id: 19331

#Unit 12. Applied Biology

Which one of the following sensors converts pressure, tension, force, etc into an electrical signal?

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#Question id: 16954

#Unit 4. Cell Communication and Cell Signaling

match the following

A. endosteal niche	1. versatile cells that both generate bone and control the differentiation of HSCs
B. osteoblasts	2. line the blood vessels and also regulate HSC differentiation
C. reticular cells	3. send processes connecting cells to bone and blood vessels, and, unexpectedly
D. sympathetic neurons	4. can control the release of hematopoietic cells from the bone marrow.

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#Question id: 30063

#Unit 7. System Physiology – Animal

During the action potential in SA node, a channel permeable to both Na+ and K+ is activated. Because this channel is activated following hyperpolarization, it is referred to as:

A. “h” channel B. “f” channel

C. “L” channel D. “T” channel

Which of the following represents correct combination?