« previous next »

Author Question: Which of the following is the strongest support for a genetic influence on autism? a. The ... (Read 101 times)

storky111

  • Hero Member
  • *****
  • Posts: 561
on: Jun 22, 2018
Which of the following is the strongest support for a genetic influence on autism?
 
  a. The concordance rate for autism is 70 percent in fraternal twins and 0 percent in identical twins.
  b. The concordance rate for autism is 5 percent in fraternal twins and 70 percent in identical twins.
  c. Siblings of autistic children are less likely to develop autism than the normal population.
  d. Parents of autistic children are usually autistic.
  e. Autism is effectively treated using serotonin agonist drugs.

Question 2

A general finding is that the brains of autistic children exhibit
 
  a. loss of cells within the cerebral cortex.
  b. enlarged brain size.
  c. fewer axons within the corpus callosum.
  d. reduced volume of the hippocampus.
  e. decreased numbers of gyri within the frontal lobes.


nanny

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: b. The concordance rate for autism is 5 percent in fraternal twins and 70 percent in
identical twins.

Answer to Question 2

Answer: b. enlarged brain size.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Genetic changes that convert proto-oncogenes to oncogenes Genetic changes that convert proto-oncogenes to oncogenes
Coral reefs, such as this one in the Red Sea, support some of the most diverse assemblages of organi Coral reefs, such as this one in the Red Sea, support some of the most diverse assemblages of organi
Steps toward a Genetic Map Steps toward a Genetic Map
Caudate Nucleus and Stereotyped Behavior in Autism Caudate Nucleus and Stereotyped Behavior in Autism
When parents actively support higher education, their children achieve more in their future careers. When parents actively support higher education, their children achieve more in their future careers.
GENETIC ANALYSIS GENETIC ANALYSIS
Video: Griffith's experiments

For a complete list of videos, visit our video library