Do you still need help?!?
Definitely smoking. That’s the prime cause of lung cancer.
Recessive gene
Hope that helps:)
The punnett square is attached to this.
The other possibilities are AB, BO, and AO.
All of them have 25%.
When a frameshift mutation occurs, the string of DNA will be glued together. When this DNA is going to be part of a process, such as a transcription, whatever is causing the process is unaware of the mutation actually having happened.