Answer:
1/16
Explanation:
Sickle-cell disease is caused by a homozygous recessive genotype <em>dd</em>.
A man and a woman both heterozygous Dd will have the following offspring:
The probability of having a <em>dd</em> child with Sickle-cell disease is 1/4. Each time they have children the gamete combination is random, so the genotype of the second child is independent from the genotype of the first child.
According to rules of probability, if two events are independent from each other, the probability of both happening is calculated by multiplying the individual probabilities of each.
Therefore the probability of having the first two children with the disease is 1/4 x 1/4 = 1/16.
Well there different because a habitat is the environment in which the animals live and a niche is the role animals play in that environment. So they are different but they work hand & hand in creating a good environment.
Me and Rebekah were reading a book while Tiffany and Sam play on the bar.
As I play my favorite songs my friend tells me that we should book a flight to New Jersey for the summer. I was so excited that I jumped off the bar and and yelled omg yes.
