Some steps involved in DNA replication and protein synthesis are summarized in the table below. Step A
DNA is copied, and each new cell gets a full copy.
Step B Information is copied from DNA into mRNA which leaves the nucleus.
Step C
Proteins are assembled at the ribosomes.
Step D
Proteins fold and begin functioning.
In which step would a mutation lead directly to the formation of an altered gene?
A
Step A
B
Step B
C
Step C
D
Step D

How can an organ, such as the lungs, work for multiple body systems?

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.

What gases are carried by the blood