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Alex73 [517]
3 years ago
14

Which if the following occurred?

Biology
1 answer:
loris [4]3 years ago
4 0
The last one  because so
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If this one person planted 40 millions trees, what can you do to make at least a minimum impact to reduce humankind's impact on
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recycle, use less nonrenewable resources, dont do pollution, dont litter. Take care of our Earth <3 there is no backup planet..

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MicroRNA (miRNA) production occurs in several steps. Arrange the statements describing the production and function of miRNAs in
zmey [24]

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The miRNAs act as post-transcriptional silencers, as they are similar to specific mRNAs and regulate their stability and translation. They are small endogenous non-coding ribonucleic acid (RNA) molecules, with about 22 nucleotides, which act as regulators of gene expression in plants and animals, at the post-transcriptional level through the cleavage of a target messenger RNA (mRNA) or repression of translation.

In general, most miRNA genes are transcribed by RNA polymerase II in the nucleus in primary miRNAs (pri-miRNAs). Individually, a pri-miRNA can produce a single miRNA or contain groups of two or more miRNAs that are processed from a common primary transcript. These long pri-miRNA are cleaved by a complex comprising the double-stranded RNAse III enzyme (DROSHA) and its essential cofactor, the binding protein DGCR8 (DiGeorge Syndrome Critical Region 8 protein) in mammals. DROSHA contains two domains of RNAse III, each of which cleaves a strand of the RNA resulting in the precursor microRNA (pre-miRNA) with about 70 base pairs, which contains a double-stranded stretch and a single-stranded loop, forming a structure in clamp. The pre-miRNA is exported to the cytoplasm by the protein exportin-5 (XPO-5), where it is cleaved by DICER1, an RNAse III that assesses the 3 'and 5' ends of the pre-miRNA, generating a mature miRNA with about 22 nucleotides. The processing of pre-miRNA by Dicer promotes the unfolding of the RNA duplex in the form of a clamp. The position in the formation of the clamp can also influence the choice of tape.

Explanation:

7 0
3 years ago
I posted this once here it is again please help this is very very very very very urgent!!??!!??
ki77a [65]

Answer:the first on is a convergent boundary and the second also looks like a convergent boundary

Explanation:

7 0
3 years ago
HELP ME PLEASE ITS DUE IN TODAY
prohojiy [21]

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The Male has the dominant genes and the female has weak genes.

3 0
2 years ago
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Alexandra is researching the effects plate tectonics have on the shape of Earth. Which of the following is a result of plate tec
zloy xaker [14]

D)Heat within Earth

Explanation:

The heat from within the earth is as a result of plate tectonics. Plates on the earth are driven by heat within the earth through convection currents.

  • Plate tectonics suggests that the earth are broken into slabs that moves on the weak and ductile material called asthenosphere.
  • Heat from within the earth causes the melting of asthenosphere.
  • The riding lithosphere which is cold will sink into the asthenoshpere.
  • Hot mantle materials will move to the surface thereby setting up a convection current.
  • Heat from within the earth rises to the surface due to plate movement.

Learn more:

Lithosphere brainly.com/question/9582362

#learnwithBrainly

8 0
2 years ago
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