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

Author Question: What is the chromosomal abnormality associated with Down syndrome? a) an extra Y chromosome b) a ... (Read 100 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
on: Jun 22, 2018
What is the chromosomal abnormality associated with Down syndrome?
 
  a) an extra Y chromosome
  b) a broken branch on the Y chromosome
  c) three 21 chromosomes instead of two
  d) 24 rather than 23 pairs of chromosomes

Question 2

If only one twin has a certain disease, the twin pair is said to be
 
  a) fraternal.
  b) penetrant.
  c) karyotypic.
  d) discordant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

thall411

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 22, 2018
Answer to Question 1

c

Answer to Question 2

Sent you a PM please check your forum inbox. Thank you


Tazate

  • Member
  • Posts: 532
Reply 2 on: Jun 22, 2018
YES! Correct, THANKS for helping me on my review

amandanbreshears

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Excellent

« 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?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Telomere sequences at the end of a human chromosome Telomere sequences at the end of a human chromosome
Facial Malformations in Fetal Alcohol Syndrome Facial Malformations in Fetal Alcohol Syndrome
What cause Piriformis Syndrome? What cause Piriformis Syndrome?
Plot showing the number of genes on each human chromosome Plot showing the number of genes on each human chromosome
The regions of the human X chromosome distinguished by its banding pattern The regions of the human X chromosome distinguished by its banding pattern
Example of a genetic pedigree of the autosomal dominant disease Marfan syndrome Example of a genetic pedigree of the autosomal dominant disease Marfan syndrome
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library