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2 years ago

The highest pressure exerted on the arterial walls during the heart cycle is referred to as ____________

Biology

1 answer:

AnnyKZ [126]2 years ago

5 0

Answer:

The highest pressure exerted on the arterial walls during the cardiac cycle is known as __systolic pressure __________

Explanation:

The systolic pressure corresponds to the contraction phase in the cardiac cycle (thus the blood is pumped from the heart to the aorta and the pulmonary artery). It contains two phases: atrial systole and ventricular systole.

On the contrary, the relaxation phase of the cardiac cycle corresponds to the diastolic pressure.

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If a specific variant of a character was passed down to its offspring, which of the fallowing is the offspring inheriting

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What characteristic of viruses distinguishes them from cells? They lack an independent metabolism. Their traits do not evolve in

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Answer:

The correct answer is "They lack an independent metabolism"

Explanation:

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2 years ago

In which of the following ways are DNA and mRNA different?

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Answer:

DNA:

Dexoyribonucleic acid is the genetic material of almost all the organisms except some virus. DNA contains deoxyribose sugar that lacks 2'OH group on second carbon. The nitrogenous base pair of DNA are adenine, guanine, thymine and cytosine. DNA cannot acts as an enzyme.

RNA:

Ribonucleic acid is present as genetic material in few viruses only. RNA contains oxyribose sugar that has 2'OH group at second position. The nitrogenous base pair of RNA are adenine, guanine, uracil and cytosine. RNA can acts as any enzyme in biological reactions.

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3 years ago

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_____ use a series of electromagnets to bend streams of electrons in much the same way that glass lenses bend beams of light.

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<span>Electron microscopes! :)</span>

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3 years ago

Select the correct answer from each drop-down menu. rna interference is a mechanism of eukaryotic gene regulation. in this mecha

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The dicer enzyme processes dsRNA and forms siRNAs, which suppress the expression of target genes by cutting mRNA. 1) siRNA 2) RNA.

<h3>What are siRNA fragments?</h3>

siRNA means small interfering RNA. This is a silencing RNA molecule involved in the RNA interference mechanism, intervening in the expression of a specific gene.

siRNAs are complementary double-stranded RNA molecules composed of about 20-21 nucleotides. siRNA originates from a long double-stranded RNA (dsRNA).

The dicer enzyme cuts dsRNA molecules and produces siRNA. siRNAs suppress the expression of target genes when cutting messenger RNA.

siRNAs suppress the expression of target genes by cutting the complementary messenger RNA (mRNA) into two halves. This is accomplished by the interaction of the siRNA with the RISC complex (RNA-induced silencing complex).

The two mRNA halves are later degraded by the cellular machinery, leading to the suppression of the gene expression.

siRNAs also participate in other pathways related to RNAi, such as in antiviral defense or in the chromatin structure organization.

RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme dicer cuts dsRNA into smaller fragments called (1) siRNA, which form a complex with RISC and degrade specific (2) RNA.

You can learn more about siRNA at

brainly.com/question/7508257

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1 year ago