« previous next »

Author Question: A couple has a child with Down syndrome. The mother is 39 years old at the time (Read 1175 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?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

A Kiowa couple. The woman to the right is wearing an elk tooth dress. A Kiowa couple. The woman to the right is wearing an elk tooth dress.
Mother zebra nursing her foal Mother zebra nursing her foal
A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a A sidewheeler on the Mississippi. In 1856 Samuel Clemens became an apprentice to a steamboat pilot a
Always take the time to install spark plug wires back into the original holding brackets (wiring ... Always take the time to install spark plug wires back into the original holding brackets (wiring ...
Patient with DiGeorge syndrome. Note low set ears and wide set downward slanting eyes; often these ... Patient with DiGeorge syndrome. Note low set ears and wide set downward slanting eyes; often these ...
Fetal alcohol syndrome Fetal alcohol syndrome
Video: Embryonic development - Week 3

For a complete list of videos, visit our video library