In double-stranded DNA, the percentages of adenine and thymine are approximately equal to each other, as are the percentages of cytosine and guanine. This relationship is better known as what (named for the person who made this discovery)?
What will be an ideal response?
Chargaff's rule
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Patterns of histone methylation and acetylation are thought to provide a ____ code that affects chromatin structure and gene transcription
Fill in the blank with the appropriate word.
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
When a neuron is not transmitting an impulse, the energy resulting from the level of membrane polarization is called
A. the action potential. B. threshold. C. the resting potential. D. depolarization.
__________ are responsible for absorption and anchoring of a plant, while __________ are involved
in photosynthesis. a. Roots; leaves b. Stems; leaves c. Leaves; reproductive structures d. Reproductive structures; stems e. Roots; pollen