Answer:
a
Explanation:
i AM SURE THAT THIS IS THE ANSWER BECAUSE IF YOU TAKE b AND pUT IT WITH B IT WILL GIVE YOU Bb BUT IF YOU PUT B AND B YOULL GET BB.
The twenty- first pair of chromosomes failed to seperate during meiosis, so aziz received three of these chromosomes rather than the normal two. Aziz has down syndrome.
Temperature and precipitation
Domain = {3,1,5}.
If we look at the relation we find that the first numbers are 3,1,1 and 5.
And we know that the first number of a relation is its domain.
