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3 years ago

What factors are requierd for cloning

1 answer:

ioda3 years ago

8 0

In mammals and amphibians? An enucleated egg, a donor nucleus (preferably from an early developmental stage such as a blastocyst), and a means to stimulate the egg to be activated as if it had just been fertilized (poking with a needle is sometimes enough)

Or cloning into a vector as in at the level of DNA?
A vector with positve and negative selection markers (like antibiotic resistance and drug susceptibility), an insert, DNA ligase and restriction enzymes, buffer for restriction and ligation. Or if you are doing cloning by PCR, then you need primers, template, nucleotides, RNA pol like Taq polymerase etc.

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QUESTION 8

grin007 [14]

answer to Question will be 2 electron as it forms 2H+

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2 years ago

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If a tablet of acetaminophen, C8H9NO2, weighs 324 mg, how many moles are there in the tablet? If a tablet of acetaminophen, C8H9

Gnoma [55]

Answer:

$2.14*10^{-3} mol$

Explanation:

number of moles of C8H9NO2 = $\frac{mass}{molar mass}=\frac{324*10^{-3} g}{151.163g/mol}=2.14*10^{-3}mol$

The trick is to remember to convert milligrams to grams because molar mass is normally presented in grams per mole

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3 years ago

As a factor of production, land best refers to

Maru [420]

The first factor of production is land, but this includes any natural resource used to produce goods and services. This includes not just land, but anything that comes from the land. Some common land or natural resources are water, oil, copper, natural gas, coal, and forests.

So I’m assuming the answer would be:

C. All natural resources

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3 years ago

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From the Henderson-Hasselbalch equation, explain how the ratio [Al/[HA] changes with changing pH

Kryger [21]

Answer:

The ratio [A-]/[HA] increase when the pH increase and the ratio decrease when the pH decrease.

Explanation:

Every weak acid or base is at equilibrium with its conjugate base or acid respectively when it is dissolved in water.

$HA + H_{2}O$ ⇄ $A^{-} + H_{3}O^{+}$

This equilibrium depends on the molecule and it acidic constant (Ka). The Henderson-Hasselbalch equation,

$pH = pKa + Log \frac{[A^{-}]}{[HA]}$

shows the dependency between the pH of the solution, the pKa and the concentration of the species. If the pH decreases the concentration of protons will increase and the ratio between A- and AH will decrease. Instead, if the pH increases the concentration of protons will decreases and the ratio between A- and AH will increase.

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3 years ago

What is the with of the tank in cm that is0.20 meters

Marat540 [252]

So, the answer would be 20 cm

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2 years ago