Both parents have to be heterozygous for the trait (Xx)
X. x
X. XX. Xx
x. Xx. xx
As you can see, in the further corner, there is a homozygous recessive genotype. (xx). This means that 1/4 of all offspring will have blue eyes. Or 25%
Stairs are an example of an incline plane.
Fossils provide<span> solid </span>evidence<span> that organisms from the past are not the same as those found today; they show a progression of </span>evolution<span>. Scientists calculate the age of </span>fossils<span> and categorize them to determine when the organisms lived relative to each other.</span>
No because the scientist who made the theory did very good making and testing.
You cant think a scientific theory is bad. It might not be true, but it can't be bad.