Answer:
As I think the answer is D.
The complementary bases on the codon and anticodon are held together by hydrogen bonds, the same type of bonds that hold together the nucleotide in DNA. The ribosome only allows the tRNA to bind to the mRNA if it is carrying an amino acid. This takes place during the process of translation, where the bases of the anticodon form complementary base pairs with the bases of the codon by forming the appropriate hydrogen bonds.
The main responsible for the delay among the atrial and
ventricular contractions is the action potential conduction velocity of the AV
node cells. If the atria and ventricles contract simultaneously, atria cannot
give any help in filling the ventricles, which is needed, especially in those
with stiff ventricles as in the elderly. Hence atria have to contract first and
then the ventricles.
Answer:
B
Explanation:
Hurricanes form when warm moist air over water begins to rise. The rising air is replaced by cooler air. This process continues to grow large clouds and thunderstorms.A Tropical Storm is when that area of low pressure continues to deepen and has winds between 39-74mph.