Mendelian Traits exercise PDF

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Homework assignment for class...

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Mendelian Traits Worksheet

Name: Brandon Bachan

Use the chart below to determine your phenotype and possible genotypes. Since you cannot do a genetic test right now, if you have the dominant phenotype, you should include both the homozygous and heterozygous genotypes— see the examples on Tongue Rolling on the first row. Trait Tongue Rolling

Freckles Widow’s peak

Earlobe Cleft chin Thumb Dimples Interlocking Fingers

Possible Alleles Able to roll (R) Unable to roll (r)

Have freckles (F) No freckles (f) Widow’s peak (W) Straight (w) Free hanging (A) Attached (a) Have cleft (C) No cleft (c) Hitchhiker’s (H) Straight (h) Dimples (D) No dimples (d) Left thumb on top (L) Right thumb on top (l)

Your Phenotype Ex., able to roll

Your Genotype(s) RR (homozygous) or Rr (heterozygous)

No freckles

ff (homozygous)

Widows Peak

Ww (heterozygous) or WW (homozygous) Aa (heterozygous) or AA (homozygous) Cc (heterozygous) or CC (homozygous) Hh (heterozygous) or HH (homozygous) Dd (heterozygous) or DD (homozygous) Ll (heterozygous) or LL (homozygous)

Free hanging Have Cleft Hitchhikers Dimples Left thumb on top...