In response to injury, cell fragments called platelets get activated to induce clotting. Activated platelets release factors that can in turn bind to specific membrane receptors on nearby cells. What type of signaling would this be considered?
A. Direct contact
B. Synaptic
C. Paracrine
D. Endocrine
E. Autocrine
Answer: C
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List the six most abundant elements found in living organisms. For each of the following, indicate the biologically important molecules in which they are most important
Any help with this list would be great, thank you.
Which type of protein adds a phosphate group to another molecule?
A. kinase B. G protein C. phosphatase D. phosphorylase
Which of the following statements is true?
A) All traits currently in a population must have provided a reproductive advantage at some point in time. B) The advantage a trait conveys depends on its environmental context. C) A population will always evolve to fit current conditions. D) All traits are simultaneously maximized in a population.
In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous tall plant, what is the probability that the offspring will be short?
A) 1 B) 1/2 C) 1/4 D) 1/6 E) 0