Answer:
C
Explanation:
The brother has different alleles for the blood type gene than his sister does. Blood type is inherited from parents like many other traits that can be displayed on a punnet square. Depending on what the parents blood type alleles were, the brother and sister could have different blood types.
A different number of chromosomes doesn't lead to different blood types, so D is wrong. And A is incorrect because the number genes also does not affect blood type. And I think the blood type genes are on the same chromosome, so B is wrong. C is correct because blood type is inherited by alleles, and different alleles can cause different traits, such as blood types.
Answer:
Water can carry many different kinds of bacteria and possible diseases. It is important to treat the water correctly so these are not consumed. Having good water quality means having safe water to drink for all.
Explanation:
Answer:
I think it's called 'filling in'
Explanation
Hope this helps :)
