Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
DNA is copied during cell division
Explanation:
Genetic variation refers to the difference in the genetic material of the offspring compared to their parent. The changes in gene occur as a result of the natural selection pressure and the new combination of sequences is formed in the gene in individuals.
The individuals with variation are then selected by nature based on the basis of how much these genetic variations prove beneficial:
1. The new combination of sequence could allow the population to adapt to the new environment
2. The new combination can allow the population to survive and when the population survives then the reproduction rate of population increases.
By slowly lowering the coverslip onto the slide at a 45-degree angle.
Yes, this will be a silent mutation.
Explanation: The mutation which occurred in the human insulin gene where the first codon was changed to CCG will be a silent codon because this will not change the sequence of the amino acid and the amino acids formed will remain the same.