The XY sex-determination system is the sex-determination system found in humans, most other mammals, some insects (), some snakes, and some plants ().In this system, the sex of an individual is determined by a pair of sex chromosomes.
Test your knowledge with amazing and interesting facts, trivia, quizzes, and brain teaser games on MentalFloss.com.
An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman’s abdomen creating a picture (sonogram) of the baby and placenta.
7 Weeks Pregnant, Symptoms and What to Expect at 7 Weeks Pregnancy.
man or teen? It’s perhaps the most common question asked of pregnant women, and many a pregnant woman looks forward to learning the sex of her baby with
The SRY gene provides instructions for making a protein called the sex-determining region Y protein. This protein is involved in male sexual development, which is usually determined by the chromosomes an individual has. People usually have 46 chromosomes in each cell. Two of the 46 chromosomes
What three things should you accomplish in the process of determining the credibility of evidence and information?
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism.Most organisms that create their offspring using sexual reproduction have two sexes.
What is the difference between a zygote, an embryo and a fetus? What are the main early development stages of humans? How similar are they to other s?
During the past 35 years, federal courts, particularly the U.S. Supreme Court, have superseded states as the driving force in crafting abortion policy.
