Answer these: 1) What is bone marrow?
2) Where is it located?
3) Can one live without a bone marrow?
4) What is bone marrow made of?
Kratika Please hurry and answer, you have always helped me.

These are the answers:

1) Bone marrow is a spongy tissue inside some of our bones.

2) It is located at the ribs, bones of the pelvis and vertebrae,e.t.c.

3) Yes!, A person can live without a bone marrow only if they receive regular blood transfusions.

4) Bone marrow is made up of large bones.

Explanation:

A bone marrow is where new blood cells are produced.

Hope it helps.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."