Q: Please answer correctly the following question related to the paragraph below. Which group had more individuals with a specific mutation in the primary sequence of their hemoglobin molecules? Doctors studied two groups of patients. Group W which had people with sickle cell disease, and group A which had normal people in it. Hint: Some individuals have a specific mutation in the primary sequence of their hemoglobin molecules that causes them to aggregate, resulting in a deformation of their red blood cells. This abnormality is genetic in nature. A person may inherit the gene from one parent and have sickle cell trait (only some of the hemoglobin is hemoglobin S), which is usually not life-threatening. Inheriting the gene from both parents will result in sickle cell disease, which is a very serious condition.
A: Group W

Q: Please answer correctly the following question related to the paragraph below. Which country had forests that produced less biomass? Burma had many tropical forests, while a sister country from a temperate climate, Belarus, had beautiful ancient temperate forests. Both countries were significant lumber exporters. Hint: Tropical forests (rainforests) receive more insolation and rainfall over longer growing seasons than any other environment on earth. With these elevated temperatures, insolation and rainfall, biomass is extremely productive leading to the production of as much as 800 grams of carbon per square meter per year. Higher temperatures and larger amounts of water contribute to higher rates of chemical weathering. Increased rates of decomposition cause smaller amounts of fulvic acid to percolate and leach metals from the zone of active weathering. Thus, in stark contrast to soil in forests, tropical forests have little to no podzolization and therefore do not have marked visual and chemical contrasts with the soil layers. Instead, the mobile metals Mg, Fe and Al are precipitated as oxide minerals giving the soil a rusty red color.
A: Belarus

Q: Please answer correctly the following question related to the paragraph below. Which person will experience less tooth decay? Tony and Greg are brothers. They are currently in the kitchen eating a snack together. Greg is eating a stalk of celery while Tony is eating out of a bowl of candy. Tony remarks that he doesn't know how Greg enjoys such a bland snack. Greg just gives Tony an angry glare before getting up to go into the living room. On the living room table, Greg finds a glass of milk and a bowl of milk. The glass of milk has started to get thick, but the bowl of milk appears to be still fresh. Greg rolls his eyes at the mess and walks away. Hint: Animals and some bacteria and fungi carry out lactic acid fermentation. Lactic acid is a waste product of this process. Our muscles perform lactic acid fermentation during strenuous exercise, since oxygen cannot be delivered to the muscles quickly enough. The buildup of lactic acid is believed to make your muscles sore after exercise. Bacteria that produce lactic acid are used to make cheese and yogurt. The lactic acid causes the proteins in milk to thicken. Lactic acid also causes tooth decay, because bacteria use the sugars in your mouth for energy.
A: Greg

Q: Please answer correctly the following question related to the paragraph below. Which brother had to take interferon? Two brothers went on vacation. Tom partied heavily, and found out that he was infected with the HIV virus. Tim was more moderate, he went to the beach to get a sun tan, but he got an infection as well. Tim found out he got a bacterial infection and had to take antibiotics. Hint: While people have been able to prevent certain viral diseases by vaccinations for many hundreds of years, the development of antiviral drugs to treat viral diseases is a relatively recent development. Antiviral drugs are medications used specifically for treating the symptoms of viral infections. The first antiviral drug was interferon , a substance that is naturally produced by certain immune cells when an infection is detected. Over the past twenty years the development of antiretroviral drugs (also known as antiretroviral therapy, or ART) has increased rapidly. This has been driven by the AIDS epidemic.
A:
Tom