What does the sodium-potassium pump keep at a high concentration inside of cells? A. sodium

B. potassium

What is the role of the phospholipid belayer in cellular transport in living cells

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?

Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical. twenty persons were tasters. how many had heterozygous genes? 10 20 0-20 indeterminate