Genetic VariationsGenetic Variations
Spring 2010Spring 2010
VocabularyVocabulary
Phenotype = Physical CharacteristicsPhenotype = Physical CharacteristicsGenotype = Genetic code for Genotype = Genetic code for
characteristicscharacteristicsDominant = stronger gene, always Dominant = stronger gene, always
shows (capital letter present)shows (capital letter present)Recessive = weaker gene, rarely shows Recessive = weaker gene, rarely shows
(must have two lower case letters)(must have two lower case letters)
GenderGender
Male Female
HairlineHairline
Widow’s Peak Straight Hairline
Hair TypeHair Type
Curly Hair Straight Hair
Eyelash LengthEyelash Length
Short Eyelashes Long Eyelashes
Eye ColorEye Color
Brown Eyes Light Eyes (Blue, green, hazel)
Eye ShapeEye Shape
Almond Shaped Round Shaped
Ear Lobe AttachmentEar Lobe Attachment
Attached Free Lobe
Nose SizeNose Size
Broad Nose Slender Nose
Nose ShapeNose Shape
Roman NoseStraight Nose
Lip SizeLip Size
Broad Lips
Thin Lips
DimplesDimples
Dimples No Dimples
FrecklesFreckles
FrecklesNo Freckles
Tongue RollTongue Roll
Can Roll Tongue
Cannot Roll Tongue
Hitchhiker’s ThumbHitchhiker’s Thumb
Hitchhiker’s Thumb
No Hitchhiker’s Thumb
Cleft ChinCleft Chin
Cleft Chin No Cleft Chin
Interlocking FingersInterlocking Fingers
Right thumb on top
Left thumb on top