Genetic counselors can recommend genetic tests and intepret the results of these tests for individuals. In which instances can a genetic counselor in the United States recommend a genetic test? Select all of the statements that apply. O A. An individual seeks a test for a genetic disorder that involves many genes. B. An individual seeks a test for single-gene disorder, such as Huntington's disease. C. A pregnant woman has an ultrasound that suggests her unborn child has a genetic disorder. D. The parents of an unborn child want to increase their child's intelligence. E. Cardiovascular disease is common in the individual's family.

Question

Biology

Jamison Boyd

7 September, 06:13

Genetic counselors can recommend genetic tests and intepret the results of these tests for individuals. In which instances can a genetic counselor in the United States recommend a genetic test? Select all of the statements that apply. O A. An individual seeks a test for a genetic disorder that involves many genes. B. An individual seeks a test for single-gene disorder, such as Huntington's disease. C. A pregnant woman has an ultrasound that suggests her unborn child has a genetic disorder. D. The parents of an unborn child want to increase their child's intelligence. E. Cardiovascular disease is common in the individual's family.

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Ellis Arroyo · Answer 1

Answer: A. An individual seeks a test for a genetic disorder that involves many genes.

B. An individual seeks a test for single-gene disorder, such as Huntington's disease.

C. A pregnant woman has an ultrasound that suggests her unborn child has a genetic disorder.

E. Cardiovascular disease is common in the individual's family.

Explanation:

A. is correct option because the cause of genetic disorders are the multiple genes. This shows the polygenic inheritance. In these conditions the environmental factors as well as genes are responsible for the expression of traits that are responsible for the disease or disorder.

B. A single gene disorder is caused by the mutation in the single gene. The huntington's disease is caused by the inheritance of the defective single gene. It is an autosomal dominant disorder. This represents that person requires only a single copy of the defective gene to result in this disorder.

C. During the pregnancy, the ultrasound may show some kind of abnormalities, for this genetic testing is required to be done to determine that the either of parent carried the traits of the genetic disorder.

The cystic fibrosis, tay sacs disease and down syndrome are the disorders that must be diagnosed in the prenatal period.

E. The cardiovascular diseases are those diseases that may be caused by the multiple genetic mutations and because of environment factors. A genetic test is the suggestion for the people with the cardiac diseases.