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Prenatal Development Stages

Across
Units on chromosomes which hold biological instructions
A fertilized cell in the first two weeks of pregnancy
How food gets to and from a baby in the womb
Harmful external substances
The environment we are brought up in
Chromosomes which identically replicate
The first 2 months of pregnancy
The weeks before the fetal stage of development
The structure in every cell which contains genetic information in the form of genes
The remaining 7 months of prenatal development
The organ in which the fetus grows and develops
"Everything child do is taught to them" nurture
Down
The genetic make up of a person
Chromosomes that are randomly split and rearranged
A fertilized egg
The first two weeks of pregnancy
The first American to study nature vs. nurture
Biological name for a baby in the womb
Nature and nurture go hand-in-hand