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ziro4ka [17]
3 years ago
9

miRNAs can control gene expression by what action?A. degrading proteins as soon as they are formedB. inhibiting the catalytic ac

tivity of rRNAC. binding to mRNAs and degrading them or blocking their translationD. binding to DNA and preventing transcription of certain genesE. seeking out viral DNA and destroying it
Biology
1 answer:
levacccp [35]3 years ago
5 0

Answer:

C) binding to mRNAs and degrading them or blocking their translation

Explanation:

<u>miRNAs:</u>

miRNAs is the abbreviation of MicroRNAs. These are the small noncoding RNAs of ∼22 nucleotides which can not code for peptides. miRNAs are responsible for gene expression regulation at the level of post transcription. They can do so by forming complementary base pairing with target mRNA and inhibiting their translation.

They silenced mRNA by the following processes:

(1) Cleavage of the mRNA strand into pieces,

(2) stopping mRNA from translation into proteins by ribosomes.

(3) Shortening of mRNA poly(A) tail and destabilizing it.

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A mutation within a gene that will insert a premature stop codon in mrna would _______
AveGali [126]

A mutation within a gene that will insert a untimely cease codon in mRNA would result in a shortened polypeptide chain.

<h3>What occurs if there is a untimely end codon?</h3>

Thus, nonsense mutations occur when a premature nonsense or end codon is added in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins

<h3>What mutation motives untimely cease codon?</h3>

In genetics, a nonsense mutation is a factor mutation in a sequence of DNA that effects in a premature stop codon, or a nonsense codon in the transcribed mRNA, and in a truncated, incomplete, and normally nonfunctional protein product.

Learn more about mutation here:

<h3>brainly.com/question/17031191</h3><h3 /><h3>#SPJ4</h3>

6 0
1 year ago
If we have 46 chromosomes, about how many feet would that be? (Show some math work)
deff fn [24]

Answer:

276

Explanation:

Chromosomes are about 6 feet long.

46 x 6

= 276

8 0
2 years ago
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Mama L [17]
The oceanic plate melts and forms magma and sinks back into the mantle. The magma can erupt through the continental plate like a volcano. so in other words it would be volcanoes
5 0
3 years ago
Which statement is the most accurate outcome criteria for the nurse to use when determining if a patient is responding appropria
BabaBlast [244]

Answer:

The statement that will show the best accurate criteria is patient's respiratory rate is 16 breaths/minute and blood pressure is 130/72 mm Hg.

Explanation:

Adrenergic drugs are drugs that cause the stimulation of the sympathetic nervous system, which is also known as adrenergic nervous system by performing or mimicking the activities of the epinephrine and norepinephrine, or interfering with their release.

It should be noted that, epinephrine and norepinephrine are also known as adrenaline and noradrenaline, this is because they are secreted by the adrenal gland, and this gives rise to the term adrenergic.

Examples of adrenergic drugs are phenylephrine, clonidine and oxymetazolin among others.

6 0
3 years ago
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If your body has developed a tolerance to a medication you're taking, it means the medication at your current dose has stopped working as effectively as it once did. It might mean your body becomes used to the medication, and you don't get the same benefits or effects as before. Drug tolerance is indicative of drug use but is not necessarily associated with drug dependence or addiction. The process of tolerance development is reversible and can involve both physiological factors and psychological factors.

7 0
2 years ago
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