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krek1111 [17]
2 years ago
6

Which is the least complx thing in our body

Biology
1 answer:
DanielleElmas [232]2 years ago
6 0
I think the answer is Cell it should me .
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The anatomy and physiology instructor is discussing adrenergic receptors with the nursing class. What adrenergic receptor would
Lesechka [4]

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Alpha-1

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Adrenergic receptors are the integral proteins present in the postsynaptic plasma membranes. These receptors are activated when the neurotransmitter norepinephrine and the hormones norepinephrine and epinephrine bind to them. The alpha 1 adrenergic receptors are found in the smooth muscle fibers of blood vessels that serve the salivary glands, skin, and kidneys. These receptors are also found in the radial muscle of iris of the eye as well as in the sphincter muscles of the stomach and urinary bladder.

They exert excitatory effect and lead to contraction of smooth muscles of the blood vessels, dilation of pupil, and closure of sphincters of the bladder.

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3 years ago
What are the functions of a petal
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A particular cell has half as much dna as some of the other cells in a mitotically active tissue. the cell in question is most l
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frosja888 [35]

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a. positive; negative

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Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the strands of DNA separate and one serves as a template for RNA, while the other is inactive. At the end of the transcript, the tapes that have been split back together again.

The transcription process is divided into three steps: initiation, stretching and termination

During the stretching phase, transcription chain elongation occurs. In this phase the enzyme called RNA polymerase starts to move through the DNA molecule, unwinding its helix and producing an increasingly lengthened RNA molecule. The already transcribed DNA is rewound almost immediately, recomposing its double helix. This process is called the elongation phase.

During this process, it is believed that positive supercoils  are generated ahead of the transcription bubble and  and the negative supercoils behind it.

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