Answer:
Explanation:
a. Since both the parents are carriers, they have one allele that is the gene for the normal trait and one gene that is for the sickle cell trait. So the genotypes of the parents are Hh
b. If we use a punnett square:
H h
H HH Hh
h Hh hh
Genotypic ratio: 1 HH: 2Hh: 1hh
Phenotypic ratio: 1 normal blood cell: 2 sickle cell carriers: 1 sickle cell disease
Answer: The different layers are a result of lighter parts (such as the continental crust) settling at the surface level and heavier parts (such as iron and nickel in the core) settling in the middle. The layers separate by density, otherwise known as compositional layering. The earth did not always have these layers, as it had to undergo cooling to form some of them (like the continental crust).
Answer:
Scientists repeats the steps in cycle mode and in order to be sure about the results he/she chosen.
<span>3.2 inches. The nurse if doing a cardiopulmonary resuscitation. It is an emergency procedure combines with chest compression and artificial ventilation. It is done during a cardiac arrest. When doing so the nurse should compress the lower sternum by 3.2 inches.</span>
B! The strongest characteristics will survive when the weak ones won't
