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2 years ago

Determine whether the following events occur during initiation, elongation, or termination. This is regarding protein synthesis.

Biology

1 answer:

erik [133]2 years ago

8 0

Answer:

The provided events can be classified as:

Initiation

In prokaryotes, the Shine-Dalgarno sequence pairs with rRNA.
In E. coli, mRNA binds to the 30S ribosomal subunit.

Elongation

In E. coli, EF-Tu delivers an aminoacyl-tRNA to the ribosome
Initiator tRNA enters the P site.
In E. coli, EF-Tu hydrolyzes.
Translocation occurs

Termination

The ribosome has mRNA, an empty A site, and deacylated tRNA in the P site

Translation is the process by which polypeptide chain is synthesized based on the codon sequence of the mRNA (messenger ribonucleic acid).

It is divided into three stages:

Initiation: The small and large sub-units of the ribosome get assembled around the initiation codon. It forms three sites (A, P, and E site) for interaction tRNA and mRNA.

Elongation: Specific charged-tRNA enters from A site and transfers its amino acid to the growing polypeptide chain in P site. Uncharged tRNA exit from the E site. Ribosome moves or translocates to the next codon.

Termination: As soon as ribosome reaches the termination codon, it releases the newly synthesized polypeptide chain.

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Water is a ____ molecule

rusak2 [61]

Water is a H2o molecule

6 0

2 years ago

In a hardy-weinberg population with two alleles, a and a, that are in equilibrium, the frequency of allele a is 0.2. what is the

Allushta [10]

The Hardy-Weinberg equation is as follows:
$( {p + q})^{2} = 1$
${p}^{2} +2pq + {q}^{2} = 1$
Where:
(convert all % to decimals)

p= homozygous dominant
q= homozygous recessive
pq= heterozygous

While you did not specify whether the 0.2 frequency was for dominant or recessive, we can still figure out the answer.

Using the 1st equation, we can solve for the other dominant/recessive frequency:

1-0.2=0.8

Meaning that:

p= 0.8 & q=0.2

If the heterozygouz frequency is 2pq, then it becomes a simple "plug & chug" sort of approach.

2(0.8)(0.2)= 2(0.16)= 0.32

So, the heterozygous frequency would be:
0.32

Hope this helps!

8 0

2 years ago

Name three important compounds of potassium and give their use in daily life

Ainat [17]

Answer:

Potassium

Explanation:

Potassium forms many important compounds. Potassium chloride (KCl) is the most common potassium compound. It is used in fertilizers, as a salt substitute and to produce other chemicals. Potassium hydroxide (KOH) is used to make soaps, detergents and drain cleaners.

5 0

2 years ago

NEED ANSWER FAST PLEASE!!!! Which professions require licenses to practice? only cosmetologists and dermatology technicians only

exis [7]

Answer: Dermatologists, dermatology technicians, and cosmetologists

Explanation:

4 0

2 years ago

Rank the following elements by increasing atomic radius carbon aluminum oxygen potassium

Vlada [557]

Answer:

The elements in increasing order of atomic radius: oxygen, carbon, aluminum, potassium

Explanation:

The distance from the center of the nucleus to the outermost shell of the electron is known as the atomic radius of an element. The atomic radius decreases rightward along each period (row) of the table due to the increase in effective nuclear charge (the charge of the nucleus equal to the number of protons). Across a period, electrons are added to the same energy level and the increasing number of protons causes the nucleus to exert more pull on these electrons, which makes the atomic radius smaller. Atomic radius increases down each group (column) of the periodic table because of the addition of electrons to higher energy levels, which are further away from the nucleus and the pull of nucleus weakens. Another reason for the increase in atomic radius is the electron shielding effect, which is the reduction of the attractive force between a nucleus and its outer electrons due to the blocking effect of inner electrons

While moving from left to right in the second period, c arbon comes before oxygen and so oxygen will have a smaller atomic radius than carbon. While moving down the periodic table, al uminum comes before potassium even if they are not in the same period. So aluminum 's atomic radius will be smaller than that of potassium but bigger than that of carbon and oxygen.

4 0

2 years ago