Which of the following contains a coded message of how to construct a protein?
A. ATP
B. tRNA
C. ribosome
D. mRNA
D. mRNA
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An action potential can always be initiated specifically at which of the following locations associated with a neuron?
A) ion channels B) synaptic boutons C) nodes of Ranvier D) both choices A and B E) none of the above
Before Mendel's work was rediscovered, some argued that natural selection would not work because favorable traits would merge into existing traits over time and become lost. This hypothesis is known as ________. [two words]
Fill in the blank(s) with correct word
A graduate student has been assigned the task of preparing a "cDNA library" of a microbe. He will need a vector, restriction enzymes and (CRISPR-Cas9/reverse transcriptase/Taq polymerase).
What will be an ideal response?
Which of the following characteristics distinguished T cells from B cells?
A. B cells produce immunoglobulin while T cells do not. B. B cells originate in the bone marrow while T cells do not. C. B cells form memory cells while T cells do not. D. B cells are lymphocytes while T cells are not.