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 101 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
Excellent

TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Joseph Moore and His Family (1839), by Erastus Salisbury Field, reflects the emerging middle-class f Joseph Moore and His Family (1839), by Erastus Salisbury Field, reflects the emerging middle-class f
Estimated age-related changes in semantic and episodic memory abilities. Semantic memory abilities ... Estimated age-related changes in semantic and episodic memory abilities. Semantic memory abilities ...
Human embryo fetus Growth Human embryo fetus Growth
The karyotype of Turner syndrome. The karyotype of Turner syndrome.
How to handle Piriformis Syndrome better? How to handle Piriformis Syndrome better?
Video: Interview with Person having Obsessive Compulsive Disorder

For a complete list of videos, visit our video library