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guajiro [1.7K]
3 years ago
6

What role does DNA play in the production of a protein?

Chemistry
1 answer:
klemol [59]3 years ago
5 0

A

Explanation:

The coiling up of DNA with the help of histone proteins - to what is called heterochromatic regions-  is part of gene regulation. This makes genes inaccessible to RNA polymerase that makes mRNA from the genes. When the genes are exposed by DNA unwinding, these genes are transcribed and the resulting mRNAs are translated by ribosomes into proteins.

The DNA never unwinds completely, but rather does so region by region, because if it does so it would become so long that it wouldn't fit in the nucleus or cell.

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What is the mass, in grams, of a pure gold cube that has a volume of 4.20cm^3 ?
Rama09 [41]
WOW, I gave you the answer, i used a periodic table, i got the mass of gold and i linked a helpful link my teacher gave me because we used it in a lab once.
5 0
3 years ago
Determine what type of compound is shown below:
34kurt

Answer:

Polar

Explanation:

Methanol is not electrostatic

It's not metallic as it has no metals in it

It's not ionic as coordinate bonding is made.

It's polar as a lone pair is present over OH-

3 0
2 years ago
What element has three electrons in its 5d sublevel?
Sever21 [200]
C. Ta
Tantalum is an element with an atomic number of 63 and its electronic configuration is:
[Xe] 4f¹⁴ 5d³ 6s²
7 0
3 years ago
A reaction between liquid reactants takes place at −10.0°C in a sealed, evacuated vessel with a measured volume of 45.0L. Measur
maks197457 [2]

Answer: 0.0624 atm

Explanation:-

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = ?

V= Volume of the gas = 45.0 L

T= Temperature of the gas = -10.0°C = 263 K    0^00C=273K

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas

Moles of gas=\frac{\text{ given mass}}{\text{ molar mass}}= \frac{19.0g}{146g/mole}=0.130moles

P=\frac{nRT}{V}=\frac{0.130\times 0.0821\times 263}{45.0}=0.0624atm

The pressure of sulfur hexafluoride gas in the reaction vessel after the reaction is 0.0624 atm

3 0
3 years ago
20. Check all the properties that apply to a base such as soapy water or bleach or Ca(OH)2. *
Anna007 [38]

taste bitter

have high pH's - more than 7

feel slippery

Explanation:

Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia. They are substances that produces hydroxyl ions in solutions.

  • The aqueous solutions of many bases have a bitter taste
  • Bases generally have a soapy or slippery feel.
  • They have a high pH reading on the scale.
  • They are good electrolytes
  • The are used for making soaps in industries.

Learn more:

Acidity brainly.com/question/5121777

#learnwithBrainly

4 0
3 years ago
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