Probably 3 %. a mother could give birth to a child with Trisomy 21 at any age because Trisomy 21 is a mutation and mutations happen all the time. Not all mutations are as Down Syndrome. A child born to two homozygous brown eyed parents could be born with blue eyes even if no one in the family had blue eyes. The child would develop blue eyes due to mutation.
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Asexual requires one parent, which produces genetically identical offspring, however sexual reproduction requires two parents, and there is a varied genes
Answer:
because theyre in our bodies and they have to be small to be in our bodies
Explanation:
I think should do the trick A and D
I believe true because the Precambrian is the first geologic time, going back 4600-570 years ago, meaning it should contain the earliest of things.
