« previous next »

Author Question: A couple has a child with Down syndrome. The mother is 39 years old at the time (Read 1143 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
on: Jun 21, 2013
A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition?
A) The woman inherited this tendency from her parents.
B) One member of the couple carried a translocation.
C) One member of the couple underwent nondisjunction in somatic cell production.
D) One member of the couple underwent nondisjunction in gamete production.
E) The mother had a chromosomal duplication.


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #1 on: Jun 22, 2013
100% it's D, don't forget to gimmi a thumbs up :D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Reply #2 on: Aug 13, 2013
Thanks so much, you were right on.


« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

The cranium of a young infant changes dramatically in shape with age. Initially the child has severa The cranium of a young infant changes dramatically in shape with age. Initially the child has severa
Karen McCoy, Considering Mother's Mantle Karen McCoy, Considering Mother's Mantle
Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome. Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome.
Milankovitch cycles interact over time Milankovitch cycles interact over time
Cushing’s syndrome Cushing’s syndrome
Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011 Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011
Video: Types of antimicrobial substances (interferons & complement protein)

For a complete list of videos, visit our video library