Examlex
The polymerase chain reaction (PCR) is used to
Agonist
A chemical or drug that binds to receptors in the brain and activates them to produce a biological response.
Neurotransmitter
Chemical messengers that transmit signals across a chemical synapse from one neuron to another 'target' neuron, muscle cell, or gland cell.
Endogenous
Originating from within an organism, tissue, or cell, used to describe processes or substances that are internally generated.
Naturally Occurring
Referring to substances, phenomena, or processes that exist or happen without human intervention.
Q2: Why do organisms have the ability to
Q3: Two chromosomes that have the same set
Q11: Energy is used to force protons from
Q21: Enzymes proofread base-pairing during DNA replication.
Q39: The first vertebrates to colonize land were<br>A)
Q52: Why might it not be surprising to
Q56: The reduction division of meiosis has occurred
Q56: Two hundred million years ago all of
Q63: Chromosomes are lined up at the middle
Q67: Cells use three main types of RNA: