Due date:
Name:
Genetic trait strip
Date:
Period:
1) Cheek - Non-dimples VS dimples (Dominant = Non-dimples , Recessive = dimples)
Mom and dad are both heterozygous. What are the possible genotype, phenotype, and ratios for the
parents and offspring?
2) Chin- Non-cleft chin VS Cleft chin (Dominant = Non-cleft chin , recessive = cleft chin)
Mom is homozygous recessive while dad is homozygous dominant. What are the possible genotype,
phenotype, and ratios for the parents and offspring?
3) Chin - Long chin vs short chin ( Dominant = short chin , Recessive = long chin)
Mom is a carrier for long chin while dad has a long chin. What are the possible genotype, phenotype,
and ratios for the parents and offspring?
4) Ears - round vs pointy ( Dominant = Round ears , Recessive = pointy ears )
Mom is homozygous recessive while dad has pointy ears. What are the possible genotype, phenotype,
and ratios for the parents and offspring?
5) Ear lobes - Attached VS Free ( Dominant = free lobe , Recessive = attached lobes )
Mom is homozygous for free lobes while dad is a carrier for the recessive trait. What are the possible
genotype, phenotype, and ratios for the parents and offspring?
6) Eye - normal vs Bulging ( Dominant = normal eyes , Recessive = bulging eyes )
Mom has normal eyes but she is not a carrier while dad has bulging eyes. What are the possible
genotype, phenotype, and ratios for the parents and offspring?
7) Eyes - Straight VS lazy ( Dominant = Straight eyes , Recessive = lazy eye )
Both mom and dad have lazy eyes. What are the possible genotype, phenotype, and ratios for the
parents and offspring?
8) Eye lids - non puffy /bags vs puffy bags ( Dominant = Non-puffy eyes lids , Recessive = puffy lids )
Neither mom nor dad have puffy eyes but one of their kids have puffy eyes. What are the possible
genotype, phenotype, and ratios for the parents and offspring?
9) *Eye color - Brown VS Green ( Dominant = brown , Recessive = green )
Mom has brown eyes while dad is a carrier
What are the possible genotype, phenotype, and ratios for the parents and offspring?
10) Eye color – brown vs blue ( Dominant = brown , Recessive = blue )
Mom has blue eyes while dad is a carrier
What are the possible genotype, phenotype, and ratios for the parents and offspring?
11) Eye color – brown vs hazel ( Dominant = brown , Recessive = hazel )
Mom is homozygous brown eyes while dad is heterozygous brown
What are the possible genotype, phenotype, and ratios for the parents and offspring?
12) Eye color – brown vs cat eye ( Dominant = brown Recessive = cat eyes )
Mom has cat eyes while dad is a carrier for the recessive trait
What are the possible genotype, phenotype, and ratios for the parents and offspring?
13) Eye brows - dual brows VS Uni-brow ( Dominant = dual eyebrows , Recessive = unibrow )
Mom and dad both have the recessive alleles
What are the possible genotype, phenotype, and ratios for the parents and offspring?
14) Eyebrows - raised vs non raised ( Dominant = raised eyebrow , Recessive = non-raised )
Mom can raise one eyebrow but dad can’t but he is a carrier
What are the possible genotype, phenotype, and ratios for the parents and offspring?
15) EYE brows - round VS pointy ( Dominant = round eyebrow , Recessive = pointy eyebrows )
Both parents have pointy eye brows
What are the possible genotype, phenotype, and ratios for the parents and offspring?
16) *Eye brows – Thick eyebrow VS Thin eyebrows ( Dominant = thick eyebrow , Recessive = thin
eyebrows)
Mom has thick eyebrows while dad has thin eye brows
What are the possible genotype, phenotype, and ratios for the parents and offspring?
17) Eye lashes - Long vs short ( Dominant = short eyelashes , Recessive = long eye lashes )
Mom is heterozygous while dad is homozygous dominant
What are the possible genotype, phenotype, and ratios for the parents and offspring?
18) Eye shape – Oval VS Slanted ( Dominant = Oval eyes , Recessive = slanted eyes )
Mom is heterozygous while dad is homozygous recessive
What are the possible genotype, phenotype, and ratios for the parents and offspring?
19) Eye shape – normal VS Small beady ( Dominant = normal , Recessive = small beady )
Mom has beady eyes while dad is a carrier
What are the possible genotype, phenotype, and ratios for the parents and offspring?
20) Eye space - Normal spaced VS far spaced ( Dominant = Normal spaced , Recessive = far spaced )
Mom has normal eye but a carrier while dad has far spaced eyes
What are the possible genotype, phenotype, and ratios for the parents and offspring?
21) Eye space – Normal spaced vs close spaced ( Dominant = Normal spaced , Recessive = close spaced
Both mom and dad have closed spaced eyes
What are the possible genotype, phenotype, and ratios for the parents and offspring?
22) Face - Smooth vs hairy ( Dominant = smooth , Recessive = hairy )
Mom and dad are both heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
23) Face - smooth skin vs acne skin ( Dominant = Smooth skin , Recessive = acne )
Mom is heterozygous while dad is homozygous for the recessive trait
What are the possible genotype, phenotype, and ratios for the parents and offspring?
24) *Freckles - Non-freckles vs freckles ( Dominant = Non-freckles , Recessive = freckles )
Neither parents have freckles but their children have freckles
What are the possible genotype, phenotype, and ratios for the parents and offspring?
25) Forehead - Normal size VS big size ( Dominant = normal size heads , Recessive = big size head)
Mom and dad both have big foreheads
What are the possible genotype, phenotype, and ratios for the parents and offspring?
26) Forehead - Normal size VS small size ( Dominant = normal size head , Recessive = small size heads )
Mom and dad are both heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
27) Hair - Black hair vs red hair ( Dominant = black hair , Recessive = red hair )
Mom has red hair while dad is heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
28) Hair – Black hair vs sandy brown ( Dominant = black hair , Recessive = sandy brown hair )
Mom and dad are homozygous recessive
What are the possible genotype, phenotype, and ratios for the parents and offspring?
29) Hair – Black VS blonde ( Dominant = black hair , Recessive = blonde hair )
Mom is heterozygous and dad is homozygous recessive
What are the possible genotype, phenotype, and ratios for the parents and offspring?
30) Hair whorl -clockwise vs counterclockwise ( Dominant = clockwise whorl = Recessive =
counterclockwise whorl )
Mom is heterozygous while dad is homozygous dominant
What are the possible genotype, phenotype, and ratios for the parents and offspring?
31) Hair texture - Straight vs wavy ( Dominant = Straight hair , Recessive = wavy hair )
Mom hair is wavy hair while dad is straight
What are the possible genotype, phenotype, and ratios for the parents and offspring?
32) *Hair texture – Curley VS Straight ( Dominant = Curley hair , Recessive = straight hair )
Mom has curly hair while dad has straight hair
What are the possible genotype, phenotype, and ratios for the parents and offspring?
33) Hairline - Cowlicks VS Straight ( Dominant = Straight , Recessive = cowlick hair )
Both mom and dad have cowlicks
What are the possible genotype, phenotype, and ratios for the parents and offspring?
34) Hairline - Non-willow peak vs willow peak ( Dominant = Non-willow peak hair , Recessive = willow
peak )
Mom has a willow peak while dad does not but is a carrier.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
35) Height - Tall VS Short ( Dominant = Tall , Recessive = short )
Mom and dad are both heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
36) Lips – Full lips VS Thin lips ( Dominant = Full lips , Recessive = Thin lips )
Mom and dad are both homozygous for the recessive trait
What are the possible genotype, phenotype, and ratios for the parents and offspring?
37) Lips – even lips VS Small top lip and large bottom lip ( Dominant = even lips , Recessive = uneven )
Mom and dad are both homozygous dominant
What are the possible genotype, phenotype, and ratios for the parents and offspring?
38) Lips - even lips VS large top lip and small bottom lip ( Dominant = Even lips , Recessive = uneven )
Mom has uneven lips and dad is heterozygous.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
39) Moles - Non- hairy mole vs hair mole. ( Dominant = Non-Hairy mole , Recessive = Hairy mole )
Mom has a hairy mole and dad is a carrier
What are the possible genotype, phenotype, and ratios for the parents and offspring?
40) Moles - Non-mole VS Mole ( Dominant = Non-mole , Recessive = mole )
Mom is heterozygous while dad has a mole
What are the possible genotype, phenotype, and ratios for the parents and offspring?
41) Nose – pointy nose VS Flat nose ( Dominant = Flat nose , Recessive = pointy nose )
Mom has a flat nose but is a carrier while dad is homozygous recessive
What are the possible genotype, phenotype, and ratios for the parents and offspring?
42) Nose - wide vs narrow ( Dominant = Wide nose , Recessive = narrow nose )
Mom and dad both have wide nose.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
43) Nostrils - wide VS Narrow ( Dominant = Narrow nostrils , Recessive = wide nostrils )
Mom and dad both have wide nostrils
What are the possible genotype, phenotype, and ratios for the parents and offspring?
44) Skin - Even tone VS Blotchy patches ( Dominant = Even tone, Recessive = Blotchy patches )
Mom has blotchy patches while dad has even tone skin.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
45) Skin - large pores vs small pores ( Dominant = Small pores, Recessive = large pores )
Mom is heterozygous while dad is homozygous recessive
What are the possible genotype, phenotype, and ratios for the parents and offspring?
46) Skin tone – black vs white ( Dominant = black , Recessive = white )
Both mom and dad are heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
47) Skin tone - black vs albinism ( Dominant = Black , Recessive = albinism )
Mom has albinism while dad is homozygous dominant
What are the possible genotype, phenotype, and ratios for the parents and offspring?
48) Teeth - Non-gap VS Gap ( Dominant = Non-gap , Recessive = Gap )
Both parents have gaps
What are the possible genotype, phenotype, and ratios for the parents and offspring?
49) Teeth - buck teeth vs normal ( Dominant = normal teeth , Recessive = buck teeth )
Mom has big teeth while dad is heterozygous
What are the possible genotype, phenotype, and ratios for the parents and offspring?
50) Teeth - overbite VS Straight ( Dominant = Straight , Recessive = overbite )
Mom has straight teeth but is a carrier while dad has an overbite.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
51) Teeth - pointy vs straight ( Dominant = Straight teeth , Recessive = pointy teeth )
Mom and dad both have pointy teeth.
What are the possible genotype, phenotype, and ratios for the parents and offspring?
52) Teeth - Straight vs crooked ( Dominant = Straight , Recessive = crooked )
Mom is homozygous for the recessive trait while dad is homozygous dominant
What are the possible genotype, phenotype, and ratios for the parents and offspring?