You receive one sex chromosome from your mother and another from your father.
If you have children who are eligible to collect benefits because your spouse or ex spouse is collecting retirement benefits, you can collect mother or father benefits until your child reaches age 16.
And you go and live with your father and your little brother, and you visit your mother at weekends.
During the production of eggs and sperm, chromosomes pair up, cross over and swap segments of DNA, mixing the genes you inherited from your mother and father (see diagram).
Two competing groups have found a genetic quirk on chromosome 9 that boosts your risk of having a heart attack by 40% to 60%, if you inherited the gene from both your mother and father.
You recently wrote an article talking about your own father's Alzheimer's, which was also about his relationship with your mother.
BBC: News | NEWSNIGHT | Jonathan Franzen interview transcript
The collective spirit of your mother, your father, your brother, your husband, your wife, your sister, your best friend -- that spirit lives on not only in you, but in your country.
"Write what you know" works if your father runs covert ops for the CIA. "Write what you know" works if your mother infiltrated the mob.
WSJ: Screenwriter-Novelist Derek Haas on Popcorn Fare | Word Craft
Your opinion that a child needs a mother and a father and therefore single people and gay people should be deprived of the right to bear and raise children is not supported by the research that shows children raised by gay and single parents do not suffer harm as a result.
Your mother can give you only an X chromosome, but your father can pass on an X or a Y chromosome.
You can collect mother or father benefits if you spouse or ex-spouse died and you have children of your spouse or your ex-spouse who are under age 16.
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