Do you know where is DNA in my body?

Question

Do you know where is DNA in human body?

Where is exactly DNA in our body? I know that it is inside the nucleus, but can you tell the entire layer from top to bottom for body? What is inside the DNA? I know what it is DNA, but the problem is that I am confused about where is it in my body?

How about RNA?

What are the biggest difference between the DNA and RNA?

And if you have any information about this subject, please tell me because I am Biology major. Thank you.

This problem occurs because I don't where is nucleus and I don't know what is top of the nucleus?

here is my main concern: Top to the bottom, i basically mean

top of the skin to inside where i found DNA, how much I have to dig in?

What is cell and where is it in my body? What is my skin made up? What is underneath of my skin?

Answer 1

You DNA is everywhere! From the top of your head to the bottom of your toes. DNA is genetic information. RNA is more about assembly of proteins. I'm not sure but read this to learn more and watch forensics or CSI.

http://home.honolulu.hawaii.edu/~rickb/S...

Answer 2

DNA (deoxyribonucleic acid) is in every cell of your body in the nucleus. Everywhere you touch has DNA encoded to tell it what to do. There are three types of RNA. tRNA, mRNA, and rRNA. RNA helps replicate DNA. For example, mRNA takes the complementary code of the DNA, then tRNA and rRNA helps read the code of the mRNA to produce proteins.  

Answer 3

Every square inch of your skin is composed of thousands upon millions of cells.

As you know, cells working together to achieve the same end constitute a tissue; tissues that work together are organs; organs that work together are systems.  So it all comes back to the basic unit of biology - a cell.

Each cell in your body (excluding gametes) is composed just like any other animal cell.  It contains a nucleus, Golgi bodies, ERs (both rough and smooth), and all the other "animal cell parts."  Inside the nucleus is the nucleolus and your DNA.  So, if you need your DNA, cheek cells from inside your mouth, a single drop of blood, a piece of hair that still has the folicle attached, a couple skin cells that aren't dead - anything will provide your DNA except for hair (the actual hair doens't contain your DNA) and fingernails (again, no actual DNA in the nail).

DNA is composed of base nucleotides (Adenine, Guanine, Cytosine, and Thymine) arranged in a double helix like this:

A-T

G-C

A-T

C-G

A-T

G-C

G-C

T-A

A-T

C-G

C-G

T-A

A-T

This is in no particular order; the DNA's arrangement is 'random' and is arranged to make you YOU.  A and T always go together just like C and G.

Now, in RNA, the Thymine is replaced with a different base called Uracil.  Also, the sugar that is responsible for holding DNA/RNA together is different: DNA (deoxyribonucleic acid) uses deoxyribose while RNA (ribonucleic acid) only uses ribose.  Another difference is that RNA only has one side, while DNA has 2 (so where you can see a ladder structure in DNA, RNA is only the one half of the ladder).  Another major difference is that RNA can leave the nuclear envelope; DNA is too important so it cannot leave.

Your skin is made up of trillions of microscopic epithelial cells that are stacked together kind of like stones on an old rock fense.  There are a couple hundred layers of dead, living, and constantly created skin cells.  Over the course of just typing this answer, trillions of skin cells have fallen off of my body because they're just dead waste; they're replaced by other skin cells that will be replaced by skin cells that are being created as I type (not because I type - they're created to replace the other cells).  The reason for so much layering and so much skin is because skin provides the first line of defense against pathogens.

If you need anything else, just let me know.  :-)

Answer 4

You are completely composed of cells. There is DNA found in the nucleus and Mitochondria in the cells. The nucleus is in the center of the cell. It is that big core in the middle. DNA is a code that creates the body. Only a tiny portion of that DNA actually does something however. Most (90 something percent) is "junk" DNA, given to us from viruses. We keep that junk DNA because when our bodies replicate DNA, there can be mistakes and that causes mutations. with most of our DNA being useless, that reduces the chances of our bodies accidentally mutating the DNA that matters.

Answer 5

DNA and RNA are in every cell in your body.  DNA is the blueprint for you...it codes for the proteins that make up your entire body, including your skin.  DNA remains in the nucleus of cells where it is transcribed into RNA.  RNA leaves the nucleus and attaches to ribosomes (another organelle inside cells) where they are "read" and where proteins are synthesized.  These proteins are used to make you, including your skin.

Answer 6

Are you kidding me?!  Open up your science book!

Answer 7

DNA is found in every cell of your body, and well every thing in your body is made up of cells. if u want a sample of DNA u need as little as a skin cell or hair,or even saliva, DNA is most commonly extracted from the blood it can be found anywhere on your body.

The differances between DNA and RNA, well the main differance is the sugar that makes up DNA is deoxyribose (not sure on spelling) and RNA is made of Ribose, RNA contains uracil (once again not sure of spelling) in place of DNA's thitosine, as one of the 4 bases that make them up. also DNA is shaped as a double helex, RNA is a single strand.

hope this helped

Answer 8

It's EVERYWHERE!!!