All categories

4 years ago

Where does DNA come from?

Chemistry

2 answers:

lara [203]4 years ago

7 0

Answer:

The DNA can be found in the cell's nucleus and beside the DNA in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

Explanation:

Hope this helps!

Naddika [18.5K]4 years ago

7 0

Answer:

In eukaryotic cells, it is in the nucleus. In prokayrotic cells it is in the nuclei. It is made of chromosomes passed down from parents

Explanation:

Hope this helps, good luck!

You might be interested in

If the enthalpy (∆H) is negative the reaction is ____________________.

vichka [17]

Exothermic i guess because delta h is negative

7 0

3 years ago

If you had excess chlorine, how many moles of of aluminum chloride could be produced from 10.0 gg of aluminum? Express your answ

gayaneshka [121]

Answer:

The answer is 0.370moles (3 s.f)

Explanation:

Step 1: write the balanced equation for the reaction

Equation for the reaction:

2Al(s) + 6HCl(g) ---------> 2AlCl3(g) + 3H2(g)

Step 2: Equate the mole of the needed substances

So therefore,

2moles of aluminum will produce 2 moles of aluminum chloride

Note that:

Relative atomic mass of Al = 27 g/mole

And, 27g of Al = 1 mole of Al.

Step 3: Solve for the required number of mole.

2moles of Al = 2moles of AlCl3

Same as

1 mole of Al = 1 mole of AlCl3

27g of Al = 1 mole of AlCl3

10g of Al = (1/27 * 10g) of AlCl3

10g of Al = 0.370moles of AlCl3

Thanks

4 0

3 years ago

What do alkali metals react bad with

solmaris [256]

Explanation:

what do you mean by "bad"

6 0

3 years ago

Read 2 more answers

The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic ra

marusya05 [52]

Answer: A. Gamma Ray

Explanation:

X-ray scans can diagnose possibly life-threatening conditions such as blocked blood vessels, bone cancer, and infections. However, x-rays produce ionizing radiation—a form of radiation that has the potential to harm living tissue. However, the risk of developing cancer from radiation exposure is generally small.

Please mark brainliest if it helped :)

4 0

3 years ago

Which of the following statements is true?

Anna007 [38]

Answer:

C. Lithium is most easily oxidized of the metals listed on the activity series and therefore it will most easily give electrons to metal cations

Explanation:

"Lithium" is a type of alkali metal that has a "single valence electron." Since it is a reactive element, it easily gives up an electron when it is combined with other elements. Such giving up of electron is meant to create compounds or bonds.

Among the common metals listed, "lithium" is the most easily oxidized. This means that it donates its electrons immediately. Such combination makes it exist as a<em> "cation"</em> or <em>"positively-charged."</em>

So, this explains the answer.

6 0

3 years ago

Where does DNA come from? ​

Where does DNA come from?