Answer:
1/2
Explanation:
Let's assume that the allele "p" is responsible for PKU in the homozygous state. According to the given information, both the parents are unaffected by the disorder but have an affected child. This means that both the parents carry at least one copy of the recessive allele responsible for the disease. Therefore, the genotype of each of the parents is Pp. A cross between Pp and Pp would produce progeny in following ratio=
Pp x Pp = 1/4 PP: 1/2/ Pp: 1/4 pp
Therefore, the probability that their next child will carry just one recessive allele is 1/2.
Answer:
Flowers and cones have different structures. Cones when mature have a woody texture and is made up of scales while flowers have colorful petals, sepals and both male and female reproductive portions are called stamens and pistils.
Explanation:
Fetus can survive an extra copy of a chromosome, but being hemizygous is <span>usually fatal</span>
Answer:
"the act of placing multiple text elements side by side to compare them"
Explanation:
the definition of juxtaposition is "the fact of two things being seen or placed close together with contrasting effect."
Answer:
silicon dioxide Si02 and diamond
Explanation:
because it's commonly found in nature
