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kondaur [170]
4 years ago
12

Scientists have engineered bacteria to produce human proteins, such as human growth hormone (hGH) used to help treat dwarfism. S

uppose the unmodified eukaryotic gene coding for hGH is inserted directly into a bacterial chromosome.
Chemistry
1 answer:
Scilla [17]4 years ago
8 0

Answer:

<u>No expression would be seen in the bacterial cell for the hGH gene</u>.

Explanation:

<u>The bacteria cannot remove the intronic sequence from a gene.so if the gene for hGH where transcribed to the bacteria it would translate to a non functional protein.Also the bacterial RNA Polymerase will not bind to the eukaryotic promoter sequence.</u>

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When a sulfur (s) atom becomes an ion, what charge does it usually have?
algol [13]

Then it would become: S2-

Its charge will be -2.

6 0
3 years ago
What does the phrase i meter per second mean
slega [8]
The phrase 1 meter per second is a unit of velocity and is a unit of rate. 1 meter per second means for every second, for example, a man runs, he travels 1 meter distance. 1 meter per second is a derivative of the primary units of SI system, meter for distance and second for time.
4 0
4 years ago
Which one of the following sets of units is appropriate for a second-order rate constant?
Natalija [7]

Answer:

C. L mol-1 s-1.

Explanation:

Hello,

In this case, a rate law has the following general form:

r=kC^x_i

Whereas r accounts for the rate measured in M/s units, k is the rate constant whose units depends on the order of the reaction, C the concentration of the species in M units, contributing to the rate and x the order of the reaction.

In such a way, since in this case x equals two (second-order rate), the units of k turns out:

\frac{M}{s}=\frac{mol}{L*s}=k*(\frac{mol}{L}) ^2\\\frac{mol}{L*s}=k*\frac{mol^2}{L^2}\\\\k=\frac{L^2*mol}{mol^2*L*s} \\\\k=\frac{L}{mol*s}

Which matches with C. L mol-1 s-1.

Best regards.

5 0
4 years ago
The theory of plate tectonics states that the earths surface is made up of moving ________
andriy [413]

Answer:

Plates

Explanation:

for example when 2 plates rub together that creates an earthquake a tsunami or even a mountain

7 0
3 years ago
To determine the molecular weights of the acid, a student dissolved a pure sample (400.0 mg) in a water to a total volume of 100
klasskru [66]

Answer:

83.86g/mol is the molecular weight of the acid

Explanation:

Molecular weight is the ratio of mass in grams and moles present. That means we need to determine the mass in grams (400.0mg = 0.400g) and the moles of the acid that can be detemined by using its reaction with NaOH:

<em>Moles acid:</em>

First, we need to assume the acid is a monoprotic acid (Only 1 proton is acid and reacts with a base).

when the acid, HX, reacts with NaOH there is produced:

HX + NaOH → H₂O + NaX

<em>Where 1 mole of HX reacts per mole of NaOH. That means the moles at the endpoint of NaOH = Moles of HX:</em>

<em />

Moles NaOH:

15.90mL= 0.01590L * (0.0750mol / L) = 1.193x10⁻³ moles of NaOH = Moles of HX are present.

The acidic solution was diluted to 100.0mL but only 25.00mL were taken, that is:

25.00mL / 100.00mL = 1/4 of the acid was titrated.

And moles of HX in the original solution are:

1.193x10⁻³ moles of HX * 4 = 4.77x10⁻³ moles of HX

<em>It is multiplied by 4 because the real amount of acid is 4 times the titrated amount.</em>

<em />

Thus, molecular weight is:

0.4000g / 4.77x10⁻³ moles of HX =

<h3>83.86g/mol is the molecular weight of the acid</h3>
8 0
3 years ago
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