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 34 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

xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

The organization of nucleotide sequences in bacterial chromosomal DNA. The organization of nucleotide sequences in bacterial chromosomal DNA.
An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ... An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has ...
Distribution of sex chromosomes from generation to generation. All children receive an X chromosome Distribution of sex chromosomes from generation to generation. All children receive an X chromosome
Chromosomal Abnormalities in Miscarriages Chromosomal Abnormalities in Miscarriages
The chromosomal explanation of the results of the X-linked crosses The chromosomal explanation of the results of the X-linked crosses
The chromosome scaffold of a metaphase chromosome The chromosome scaffold of a metaphase chromosome
Video: Primate Evolutionary Tree Animation

For a complete list of videos, visit our video library