Step 1: Copy of one side of DNA strand is made (called mRNA, messenger RNA)
step 2: mRNA moves to cytoplasm, then ribosome
step 3: mRNA goes through ribosome 3 bases at a time
step 4: transfer RNA (tRNA) matches up with the open DNA bases
step 5: tRNA releases the amino acid at the top, which joins the chain of amino acids being produced
By moving substances across membranes, transport proteins make everything from nerve impulses to cellular metabolism possible. Without transport proteins, for example, the sodium-potassium gradient that allows our nerves to fire would not exist.
<span>The question above is incomplete. The options attached to the question are as follows:
A) Milk cartons
B.) Computer monitors
C.) Disposable tapes
D.) E-mail
ANSWER
The correct option is D.
Before the advent of e-mail, huge amount of papers are used in the process of writing letters. The writing materials,the envelopes and the stamps are all made of paper and this led to a great waste as the papers have to be disposed after use.This is not the case with electronic mails. Electronic mails do not need paper at all and it has drastically reduce the amount of papers that is used in writing letters.</span>
The outer core or inner core
