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Chapter 3A

Horizontales
Where DNA molecules are stored
Male reproductive cell
The inability to conceive after at least a year of trying
Human reproductive cell
20,000 in all for a human
A person with a recessive gene that is not expressed in the phenotype
Each cell manufacturers certain proteins according to instructions stored by molecules
Also called identical twins
Also called fraternal twins
A variation of a polymorphic gene
The organisms genetic inheritance
Verticales
The nuclei of a female and male reproductive cells that become one
Sequence of chemicals, long string amino acids, which are building blocks of life
The actual appearance and manifest behavior of the person
Caused by a single gene that has more than 200 repetition of one triplet
Gene with many shapes
Also called trisomy-21
Arrange themselves in pairs (A T C G)
A variation in base pairs
entire packet of instructions to make a living organism
Female reproductive cell