carries the genetic code that determines the characteristics of a living thing
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Alleles
These are different forms of the same gene. They are either DOMINANT or RECESSIVE
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genetic diagrams
the dominant allele is shown as a capital. the recessive allele is shown as a lower-case letter
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Gender determination
Human body cells have 23 pairs of chromosomes in the nucleus. In males the two sex chromosomes are different (XY). In females the two sex chromosomes are the same (**)
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Polydactyly
is an inherited condition in which a person has an extra fingers or toes
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Cystic fibrosis
is an inherited disorder that affects the cell membranes, causing the production of thick and sticky mucus.
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Other cards in this set
Card 2
Front
These are different forms of the same gene. They are either DOMINANT or RECESSIVE
Back
Alleles
Card 3
Front
the dominant allele is shown as a capital. the recessive allele is shown as a lower-case letter
Back
Card 4
Front
Human body cells have 23 pairs of chromosomes in the nucleus. In males the two sex chromosomes are different (XY). In females the two sex chromosomes are the same (**)
Back
Card 5
Front
is an inherited condition in which a person has an extra fingers or toes
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