What we can say is that man’s sperm determines whether a baby will be a man or a teen. About half of his sperm will make a man and half a teen.
When pregnant, my friend learned her baby’s sex — but her husband chose NOT to.
Some women breeze through birth. Others find it excruciating. Know what to expect and how to find relief.
Since the dawn of humanity, men have played a vital role in determining the sex of their offspring. The Y chromosome, carried by roughly half of a man’s sperm, dictates whether a will be male or female.
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Baby Mama is a 2008 American romantic comedy film written and directed by Michael McCullers in his directorial debut and starring Tina Fey, Amy Poehler, Greg Kinnear, Dax Shepard, Steve Martin, and Sigourney Weaver
Aug 10, 2011 · man or teen? New research finds that a simple blood test can answer that question for expectant parents at just seven weeks, significantly earlier than results from procedures like ultrasound and with less risk than invasive tests like amniocentesis, which can trigger miscarriage.
Females have an XX pair of sex chromosomes, and males, an XY pair. A baby’s gender is determined by the sperm cell that fertilizes a woman’s egg. Read more
Sex of Baby. The man determines the sex of the baby. Females have XX chromosomes, that is, they can only give one X chromosome. But since males have XY chromosomes then men can either give the X or the Y chromosome.
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.