Understanding Mendelian Human Genetic Traits
Explore various Mendelian human genetic traits such as tongue rolling, attached earlobes, interlocking fingers, dimples, sex determination, bent little finger, hitchhiker thumb, freckles, widow's peak, PTC taste sensitivity, sodium benzoate taste sensitivity, and thiourea taste sensitivity. Understand the inheritance patterns of dominant and recessive alleles for each trait.
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Heredity and Genetics Mendelian Human Genetic Traits
Tongue Rolling T- tongue roller Dominant Tt or TT t - non-roller Recessive tt
Attached Earlobes E- Earlobes Dominant EE or Ee e- no earlobes Recessive ee
Interlocking Fingers I- interlocking fingers (left thumb) Dominant II or Ii i- interlocking fingers (right hand) Recessive ii
Dimples D- Dimples Dominant DD or Dd d- no dimples Recessive dd
Sex Male XY Female XX
Bent Little Finger L- Bent Little Finger Dominant LL or Ll l- Non-bent Little Finger Recessive ll
Hitchhiker Thumb N- No Hitchhiker Thumb Dominant NN or Nn n- Hitchhiker Thumb Recesive nn
Freckles F- Freckles Dominant FF or Ff f- no Freckles Recessive rr
Widows Peak W- widows peak Dominant WW or Ww w- no widow s peak Recessive ww
PTC Taste (phenylthiocarbamide) P- PTC Taster Dominant PP or Pp p- non-Taster Recessive pp
Sodium Benzoate Taste S- Sodium Benzoate Taster Dominant SS or Ss s- Sodium Benzoater Non- Taster Recessive ss
Thiourea Taste T- Thiourea Taster Dominant TT or Tt Thiourea Non- Taster Recessive Tt
