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Digiron [165]
3 years ago
12

Arrange the following events for the synthesis of RNA in the correct order: Nucleophilic attack of the 3′ OH group of the first

nucleotide at the α-phosphate group of the second nucleotide 5′ triphosphate occurs. Template specific rNTPs are bound. Several DNA bases are unwound, forming a stable complex. Polymerase finds a promoter region. A Mg+2-dependent isomerization of DNA takes place.
Biology
1 answer:
AnnyKZ [126]3 years ago
6 0

Answer:

4, 3, 5, 2, 1

Explanation:

The process of syhthesis of protein is called trancription.

  • The proces sf transcription begin with the binding of RNA polymerase enzyme with a sequence of DNA called the promoter.
  • RNA polymerase allows the unwinding of DNA bases forming a stable complex.
  • In the next step, a Mg2+-dependent isomerization occurs, that produces a modified form of the open- promoter complex.
  • RNA polymerase has one nucleoside triphosphate binding site which helps during elongation and binds any of the four common ribonucleoside triphosphates (rNTPs).
  • Then a nucleophilic attack of the 3' hydroxyl (OH) present at the first nucleotide on the a - phosphorus gorup of the second nucleotide 5' triphosphate occurs that forms the first phosphodiester bond.

Hence, the correct order is 4, 3, 5, 2, 1.

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What happens to the amount of energy as you go up the energy pyramid? Be as specific as possible
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Answer:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels.

Explanation:

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Describe the path of nitrogen from the atmosphere to plant protein nitrogen fixing bacteria
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3 years ago
A plant population produces many seeds. that if a population of plants is currently 30 individuals, and rmax= 12 plants/month, t
LiRa [457]

Answer:

\frac{dN}{dt} = 14130

Explanation:

Logistic growth is a measure of continuous growth of a population of individuals in such an environment where the resources are limited. Such type of growth pattern has a characteristic growth curve which is S-shaped or sigmoidal.

The equation for logistic growth is as follows -

Change in population size = \frac {dN}{dt} = rN(K- \frac {N}{K})

Where,

N = size of population

r = intrinsic rate of increase

K = carrying capacity

The values of r, N and K are given in the question as 12, 30 and 40 respectively.

So,

\frac{dN}{dt} = 12 \times 30(40 - \frac{30}{40}) = 14130

5 0
2 years ago
Atrial natriuretic peptide secreted by the heart has exactly the opposite function of ________ secreted by the zona glomerulosa.
Westkost [7]

Answer:

The correct answer is - option A. aldosterone.

Explanation:

Aldosterone is secreted by the Zona glomerulosa of the adrenal cortex of the adrenal gland. It is mineralocorticoid which is a steroid hormone that signals the kidney to prevent sodium ion and water in case of low blood pressure and volume in vessels. To save the water and ion of salts it promotes the reabsorption and leads to low urine output.

On another hand, ANP or atrial natriuretic peptide which release from the heart and enhances the urine output in response to high blood volume and pressure as it ceases the release of the Aldosterone.

Thus, the correct answer is - option A.

6 0
3 years ago
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