Answer:
The 4 codons that code for Alanine are :-
GCU ; GCC ; GCA ; GCG ;;
codon for Valine :-
GUU ; GUC ; GUA ; GUG
Part A. Total number of possible mutations are 36.
GCU
GCU --> GCC , GCA , GCG
GCU --> GUU , GAU , GGU
GCU --> UCU , CCU , ACU
GCC
GCC --> GCU , GCA , GCG
GCC --> GUC , GAC , GGC
GCC --> UCC , CCC , ACC
GCA
GCA --> GCU , GCC , GCG
GCA --> GUA , GAA , GGA
GCA --> UCA , CCA , ACA
GCG
GCG --> GCU , GCC , GCA
GCG --> GUG , GAG , GGG
GCG --> UCG , CCG , ACG
Part B. Silent mutations occur when the last base of the codon is substituted with other bases.
Thus, the Total number of silent mutations are 12.
Part C. Conservative mutations occur when the second base of the codon is substituted to a "U".
Thus, the Total number of conservative mutations is 4.
The answer is water vapor.
Answer:
any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially the Calvin cycle.
Explanation:
Answer:
How the heart works
The heart is a large, muscular organ that pumps blood filled with oxygen and nutrients through the blood vessels to the body tissues. It's made up of:
4 chambers. The 2 upper chambers are the atria. They receive and collect blood. The 2 lower chambers are the ventricles. They pump blood to other parts of your body. Here is the process:
The right atrium receives blood from the body. This blood is low in oxygen. This is the blood from the veins.
The right ventricle pumps the blood from the right atrium into the lungs to pick up oxygen and remove carbon dioxide.
The left atrium receives blood from the lungs. This blood is rich in oxygen.
The left ventricle pumps the blood from the left atrium out to the body, supplying all organs with oxygen-rich blood.
4 valves. The 4 valves are the aortic, pulmonary, mitral, and tricuspid valves. They let blood flow forward and prevent the backward flow.
Blood vessels. These bring blood to the lungs, where oxygen enters the bloodstream, and then to the body:
The inferior and superior vena cava bring oxygen-poor blood from the body into the right atrium.
The pulmonary artery channels oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream.
The pulmonary veins bring oxygen-rich blood to the left atrium.
The aorta channels oxygen-rich blood to the body from the left ventricle