When mRNA is made, it makes a complementary copy to the template strand of DNA (so answer is B).
Making the mRNA is like making DNA except there is no T (thymine)...so when making the mRNA the rules are
DNA is A, mRNA is U
DNA is T, mRNA is A
DNA is G, mRNA is C
DNA is C, mRNA is G
The three stages of Action Potential are:
1. depolarization- Na+ channels open up inside of the membrane and becomes more positive than the RMP.
2. repolarization- The Na+ channels inactivating and K+ channels opening AP spike stops rising to which the membrane returns to RMP.
3. hyperpolarization- A few of the <span>K+ channels remain open and the Na+ channels reset inside of membrane becomes more negative than RMP.
Hope this helps!
xo</span>
Half moon ………. Follows first quarter moon
Nonpolar and small polar moleculescan pass through the cell membrane, so they diffuse across it in response to concentration gradients. Carbon dioxide and oxygen are two molecules that undergo this simple diffusionthrough the membrane. The simple diffusion of water is known as osmosis.
This arrangement means that only small, uncharged molecules can pass through the membrane. The membrane is called semipermeable, meaning that some things can pass through without assistance, while other things cannot. Water is a charged molecule, so it cannot get through the lipid part of the bilayer. In order to allow water to move in and out, cells have special proteins that act as a doorway. These proteins are called aquaporins (aqua = water, porin = pore).
hope this helps
Answer:
A.........................
