Archive for the ‘Biology’ Category

Is there a small molecular inhibitor for c-fos?

Ani: The inhibitor should block c-fos activity (DNA binding, complex formation), not expression

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Name a drug that alters synaptic transmission in the following ways:?

DWM: Name a drug that alters synaptic transmission in the following ways:
a. blocks the action of the neurotransmitter at the postsynaptic membrane
__________________.
b. blocks the reuptake of the neurotransmitter at the presynaptic membrane
________________.
c. blocks the release of the neurotransmitter ___________________ and
___________________.

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How does the antibiotic penicillin create holes in bacterial cell walls?

jessica_stay: A. It shuts down synthesis of bacterial cell walls.
B. It sits on the ribosome and inhibits protein synthesis.
C. It blocks the cell cycle by shutting down mitosis.
D. It causes cellular respiration to stop.

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Increasing the concentration of natural substrate does which of the following?

AznKenshin: Increasing the concentration of natural substrate:
A) increases the ability of non-competitive inhibitors to block the reaction.
B) disrupts the ability of competitive inhibitors to block the reaction.
C) increases the ability of irreversible inhibitors to block the reaction.
D) disrupts the ability of non-competitive inhibitors to block the reaction.
E) disrupts the ability of irreversible inhibitors to block [...]

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Who was first to use genus ans species?

David N: Who was the first naturalist to use the terms ganus and species
i know it was edward Tyson
carolus linnaeus
charles Darwin
or john ray

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Who used whos ideas in the discovery of DNA?

fowler f: Here is a list of the scientists who may have used or built on each others ideas…
please help!
Charles Robert Darwin
Gregor Johann Mendel
Johann Friedrich Miescher
Hugo Marie de Vries
William Bateson
Thomas Hunt Morgan
Hermann Joseph Muller
Oswald Theodore Avery
Linus Carl Pauling
Erwin Chargaff
Maurice Hugh Frederick Wilkins & Rosalind Elsie Franklin
Francis Harry Compton Crick & James Dewey Watson
Franklin William Stahl [...]

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How do bacteria protect their own DNA from the the restriction enzymes they can produce?

M N: CHOOSE:
A) Their DNA never contains the recognition site
B) Ligase connects their DNA as soon as it cuts
C) Digestion is blocked by -CH3 groups added to recognition sequances in their DNA
D) Phosphate groups added to recognition sequances in their DNA block digestion
E) Restriction enzymes are blocked from entry into the nucleus

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How do most antiviral drugs function?

♥H.B.I.C.♥: How do most antiviral drugs function?
A. They target and inhibit a specific viral enzyme.
B. They target the host’ cells viral receptor.
C. They block the host cell’s metabolism.
D. They block the uptake of nutrients into the cell.

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