Humans have higher brain functions
The egg is produced by the female part the "ovaries", then sent down to the fallopian tube during sexual reproduction which then where the sperm and egg meet which then forms a baby that grows in the uterus for 280 days or 40 weeks. :)
Its is possible because your previous family members like grandparents can have dimples special features like eye color can skip a generation so for example my family all have brown eyes and my mom previously had twins with blue eyes but my great grandma has blue eyes a feature skipped from my family and she got it from my elders
Down syndrome is caused by the nondisjuction of the chromosome 21.
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Learn more: brainly.com/question/9782041
