Author Question: Which of the following is the strongest support for a genetic influence on autism? a. The ... (Read 100 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?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

For a complete list of videos, visit our video library