Title: 059 STUDY OF SOME COMMON GENETIC TRAITS
1059 STUDY OF SOME COMMON GENETIC TRAITS
CONCEPT
To survey the occurrence of the following
genetic traits among the students in a class,
then in their families
Attached and free earlobes Hitch-hiker's Thumb
and Straight thumb Widows peak and Straight
hairline Tongue rolling and lack of Tongue rolling
2ATTACHED EARLOBES Recessive
FREE EARLOBES Dominant
HITCH-HIKER'S THUMB Dominant
STRAIGHT THUMB THUMB Recessive
3STRAIGHT HAIRLINE Recessive
WIDOWS PEAK Dominant
ABILITY TO ROLL TONGUE Dominant
LACK OF ABILTY TO ROLL TONGUE Recessive
4Use this data table to keep track of the traits
listed above.
5(No Transcript)
6Pick letters to represent traits, like
abbreviations. The dominant allele is written
with a capital letter. The recessive allele gets
a lower case letter. W dominant widow's
peak allele w recessive straight hairline
allele E Free Ear Lobes ( dominant) e
Attached Earlobes (recessive ) H
Hitch-hiker's Thumb h Straight Thumb R
Tongue rolling r lack of tongue rolling
ability