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 77 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
:D TYSM

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

BLAST results showing a 280-base sequence of a chromosome 12 contig from rats BLAST results showing a 280-base sequence of a chromosome 12 contig from rats
Compartment Syndrome Relieved by Fasciotomy Compartment Syndrome Relieved by Fasciotomy
Ellis-van Creveld Syndrome Ellis-van Creveld Syndrome
Interphase chromosome territories Interphase chromosome territories
Paracentric and pericentric chromosome inversion Paracentric and pericentric chromosome inversion
Multiple origins of replication on a single chromosome from Drosophila melanogaster Multiple origins of replication on a single chromosome from Drosophila melanogaster
Video: Dietary Cholesterol & LDL

For a complete list of videos, visit our video library