Answer: B - People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease.
Explanation:
Co-dominance is when both the alleles of a gene in a heterozygote show. In the case of sickle cell anemia (since it is a co-dominant trait) even if the person only has one sickle cell allele, symptoms of sickle cell will still show up in that person. That's why the person in this example has both misshapen and healthy red blood cells.
Answer:
B. Every point on the line is an equivalent ratio.
C. As the line goes up, the speed increases.
D. Simone can pick any ratio on the line and she will be swimming at a rate of 2 mph.
Explanation:
If the line on the graph has equivalent ratio, it shows that the Simone swim at the speed of 2 mph. If the line on the graph goes up , it means the speed of swimming increases while when the line on the graph goes down, the swimming speed decreases so maintaining the speed of 2 mph, the line have to go horizontally in straight line. If Simone can pick any ratio on the line present on the graph so she has to swimming at a rate of 2 mph.
No.Tissue is a group of cells.If the organisms is single called,it can't form a group to make tissues.
Ocean currents are caused by many things. One of the main cause is the wind direction. Another cause would be density differences that is made of the temperature and the salinity of water and also currents can also be caused by events like earthquakes causing tsunamis.
