« previous next »

Author Question: Which of the following is the strongest support for a genetic influence on autism? a. The ... (Read 109 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?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

The cladistic approach from molecular genetic data The cladistic approach from molecular genetic data
Genetic Determinants Borne by Plasmids Genetic Determinants Borne by Plasmids
Model of a nursing clinical decision support system Model of a nursing clinical decision support system
A gene chip carrying the human gene set. This chip can be used to diagnose genetic disorders A gene chip carrying the human gene set. This chip can be used to diagnose genetic disorders
GENETIC ANALYSIS 15.1 (3 of 5) GENETIC ANALYSIS 15.1 (3 of 5)
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Reflex arc construction

For a complete list of videos, visit our video library