To discover the location of a genetic mutation that causes disease in humans, scientists use genetic mapping. Specifically, they
look for genetic markers, or previously discovered DNA polymorphisms, that show statistical association with the disease gene. The statistical association means that the: a. DNA polymorphism causes the disease.
b. disease causes the DNA polymorphism.
c. DNA polymorphism and the disease gene are unlinked.
d. DNA polymorphism and the disease gene are linked.
The correct answer is d. DNA polymorphism and disease gene are linked.
Explanation:
DNA polymorphism helps to study the difference in nucleotide sequence of one DNA in comparison to the standard one.
DNA polymorphism is an important tool to analyze the disease that is caused due an alteration of gene sequence leading to genetic mutation.
Now the altered gene sequence is compared with the normally functioning gene to draw a statistical relationship between altered gene sequence that causes disease with peviously discovered DNA polymorphism.
Red Blood Cell: Binds and carries Oxygen White Blood cell: Fights pathogens that can cause sickness Platelet: Helps in the healing of cuts and wounds Plasma: Contains the liquid portion of blood
theme refers to the main idea or moral of the story. Sometimes this main idea or moral is stated directly, and sometimes the reader has to think about the main idea.
