Nowadays safer vaccines are being produced give scientific reason​

because technology is evolving and is now more advanced so we can do more thing and safer things with it.

Explanation:

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.