Are mutations in an oncogene loss-of-function or gain-of-function and how many copes of the gene are usually mutated

They said i have got a sign of tuberculosis what should i do

Dna is colied into chromosomes in a cell

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing