I think its a please let me know if im wrong
In four o'clock flowers, red petals show incomplete dominance over white petals. If two pink flowers are crossed, 50 percent of the flowers will be homozygous, and 25 percent of the flowers will be heterozygous.
The right answer is A patient who is Rh– can receive only Rh– blood.
The blood group is not the only thing that matters, it adds a category: rhesus. Rhesus refers to a red blood cell antigen that is on their wall. There are two blood group systems: Rh positive (Rh +) and Rh negative (Rh-).
Rhesus is positive in people who have this antigen. It concerns the majority of the population. Negative rhesus refers to people without the antigen. This rhesus factor is especially useful to know if a blood transfusion is feasible between two people.
The blood transfusions can be "iso-rhesus", that is to say between Rh + and Rh- but only in one sense: Rh- can give to Rh + but Rh + can not give to Rh-. Again because of the presence of antibodies directed against the antigen in Rh- people.
- The
storm must be developing over warm water. The water must be at least 80
degrees Fahrenheit. The warm water provides the energy for increased
evaporation of water from the ocean surface.
- The
warm water must be at least 200 feet deep
<span>- There
should be very little wind shear in the area. Wind shear occurs when there is a
difference in wind speed and direction over a short distance. Strong wind shear
can stop the formation of hurricane eye walls. </span>
