Some people have freckles, and some people do not
have freckles. If a child has freckles, at least one parent
has freckles. However, the child may have a sibling that
does not have freckles. Which statement best describes
the presence of freckles? 1.Freckles are not determined
by DNA. 2. There are two alleles for freckles. 3.There is no
dominant allele for freckles. 4.Freckles are determined by
two genes instead of by one. If Mendel had crossed a true
breeding dominant plant with a true breeding recessive
plant, in which of the three generations is the recessive
trait visible? 1.F1 generation 2.P generation 3.F1 generation
and F2 generation 4.P generation and F2 generation.