This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Whether a fetus will be born with Down syndrome is related to a. the age of the mother at the ... (Read 68 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jun 22, 2018
Whether a fetus will be born with Down syndrome is related to
 
  a. the age of the mother at the time of pregnancy.
  b. the presence of specific amino acids in the mother's diet.
  c. overexposure to toxins during pregnancy.
  d. ingestion of drugs and alcohol by the father prior to conception.
  e. the uterine environment during pregnancy.

Question 2

The mental retardation shown in Down syndrome is caused by
 
  a. the absence of the 21st chromosome.
  b. a buildup of waste products in the neurons of brain.
  c. a genetic error involving a missing vital enzyme.
  d. the presence of an extra 21st chromosome.
  e. an inherited faulty gene.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stanleka1

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: a. the age of the mother at the time of pregnancy.

Answer to Question 2

Answer: d. the presence of an extra 21st chromosome.


sheilaspns

  • Member
  • Posts: 567
Reply 2 on: Jun 22, 2018
Great answer, keep it coming :)

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Stevens-Johnson Syndrome Stevens-Johnson Syndrome
Kawasaki Syndrome Kawasaki Syndrome
Selected Drugs for Psoriasis and Related Disorders Selected Drugs for Psoriasis and Related Disorders
People with night eating syndrome may consume more than half their day's calories between 8 pm ... People with night eating syndrome may consume more than half their day's calories between 8 pm ...
Variable expression of yellow phenotype in mice caused by diet-related epigenetic changes in the gen Variable expression of yellow phenotype in mice caused by diet-related epigenetic changes in the gen
Compartment Syndrome Compartment Syndrome
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library