Answer:
Adenine on one strand can pair only with thymine on the other strand; cytosine, only with guanine.
Explanation:
DNA nucleotides can contain one of four nitrogenous bases. These bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The two strands are held together through hydrogen bonds that form between the nitrogenous bases. Adenine (A) forms bonds with thymine (T) while cytosine (C) forms bonds with guanine (G); A only ever pairs with T, and C only ever pairs with G.
Answer:
Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.
Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.
Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.
Explanation:
Aminoacyl-tRNA synthetase is an enzyme whose function is to synthesize charged tRNA, specific tRNA biding to specific amino acid such as Met-tRNA(AUG).
They are most likely found there because most organisms like to settle near a water source for easily accessible water.
Answer:
8
Explanation:
in our Solar System we have 8, not including the Dwarf planet Pluto. there's mercury, venus, earth, Mars, Jupiter, Saturn, Uranus, and Neptune
