This topic contains a solution. Click here to go to the answer
|
Author Question: Dizygotic twins develop from: a. a single fertilized ovum and are always of the same sex. b. a ... (Read 44 times) |
Did you know?
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.
Did you know?
In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The longest a person has survived after a heart transplant is 24 years.