Answer:
Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy. When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes. But if meiosis doesn't happen normally, a baby may have an extra chromosome (trisomy), or have a missing chromosome
Explanation:
Answer:
C
Explanation:
I know because of my parents
If you are alone and didn't see the person collapse, perform five cycles of compressions and breaths on the person — this should take about two minutes — before calling 911 or your local emergency number and getting the AED, if one is available.
