Author Question: Which of the following is the strongest support for a genetic influence on autism? a. The ... (Read 99 times)

storky111

  • Hero Member
  • *****
  • Posts: 561
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
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
 

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

For a complete list of videos, visit our video library