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3 years ago

What is transcription?

Biology

1 answer:

VashaNatasha [74]3 years ago

6 0

Answer:

Transcription is the first of several steps of DNA based gene expression in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.

Hope this helps can i get brainleist?????

Explanation:

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Below are two statements about the immune system: Macrophages ingest and degrade microbes and present the microbial antigens to

cupoosta [38]

Answer:

The answer is letter C

Explanation:

Innate and adaptive branches of immunity

6 0

3 years ago

A mutation causes a sequence of DNA that has the nucleotides TTG to be changed to TCG. The resulting protein has a different seq

juin [17]

Answer:

subtitution mutation

Explanation:

The T in the middle is subtituted with C.

Hope it helps.

7 0

3 years ago

Read 2 more answers

If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of th

Sergio [31]

Answer:

If an inhibitory synapse fires at the same time and at the same distance from the initial segment as an excitatory synapse of the same intensity there will be no changes in the potential in the firing zone.

Explanation:

Under normal conditions, the transmembrane potential depends on the ionic charges present in the intracellular and extracellular spaces. The extracellular space load is usually positive and in the cytoplasm is negative.

<u>Depolarization</u> occurs by opening ion channels that allow sodium to enter the cell, making the intracellular space more positive.
An opening of potassium channels releases this ion to the extracellular space, leading to <u>hyperpolarization</u>.

An excitatory synapse is one capable of depolarizing a cell and boosting the production of action potential, provided it is capable of reaching the threshold of said potential.

On the other hand, an inhibitory synapse is able to hyperpolarize the cell membrane and prevent an action potential from originating, so that they can inhibit the action of an excitatory synapse.

The interaction between two synapses, one excitatory and one inhibitory, -called synapse summation- will depend on the strength that each of them possesses. In this case, the intensity of both synapses being the same, there will be no changes in the membrane potential in the firing zone.

Learn more:

Excitatory and inhibitory postsynaptic potentials brainly.com/question/3521553

6 0

3 years ago

Jeff’s drug addiction to cocaine occurred because cocaine overstimulated the reward system in his brain and disturbed the functi

Katen [24]

Answer:

Dopamine.

Explanation:

Cocaine is used as a recreational drug and addictive in nature. It can be smelled or directly inhaled in the veins. This drug causes the feeling of restless and happiness.

The dopamine is the important neurotransmitters that regulates the mood and other biological activity of the body. The cocaine inhibit the reuptake of dopamine and leads to its accumulation in the brain. This might also break the blood brain barrier.

Thus, the answer is dopamine.

7 0

3 years ago

Which of the following terms is least associated with tRNA?

marysya [2.9K]

The least associated with tRNA is 2.DNA

4 0

4 years ago