Answer:
He extracted and observed DNA from white blood cells.
Explanation:
Friedrich Miescher, who is a Swedish Botanist, is the scientist who isolated for the first time. In 1869, Miescher isolated a chemical he called NUCLEIN, which is called Nucleic acid now.
He discovered this so called "NUCLEIN" substance from the nuclei of white blood cells. Nucleic acids are the DNA and RNA we know today, hence, Miescher's discovery was significant to the genetic code as he even agitated for the inclusion of his discovery into inheritance.
Answer:
Adaptation 99.99% sure
Explanation:
I did this many times in school
Answer:
A - Chloroplast (although the arrow looks like it is pointed at the Thylakoid membrane)
B - Vacuole
C - Cell wall
D - Smooth Endoplasmic Reticulum (top) and Rough Endoplasmic Reticulum (down below)
Explanation:
Answer:
The correct option is C) Heparin has its effects reversed with the administration of protamine sulfate.
Explanation:
Heparin is an anticoagulant, that is, it works by decreasing the ability of blood to clot, helping to prevent the formation of clots as well as stopping the subsequent extension of any existing clot. Through the neutralization of thrombin, it prevents the conversion of fibrinogen to fibrin, and thus, prevents the formation of a stable clot by inhibiting the fibrin stabilizing factor.
Protamine sulfate is a heparin antagonist, forming with it inactive complexes without anticoagulant effect, that is, the protamine, in the presence of heparin, which is acidic in nature, through the formation of stable salts, cancels the anticoagulant effect of both substances, neutralizing and reversing the anticoagulant action of heparin.
It is a condition where you have one more chromosome than you should have. It will also most likely lead to abnormalities.
