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Phenotype and Genotype Exercise 1 Observing Phenotype Characteristics Answer

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Phenotype and Genotype Exercise 1 Observing Phenotype Characteristics Answer


Lab Report
Name:
Section
Phenotype and Genotype
Exercise 1 Observing Phenotype Characteristics
Record your personal phenotype and possible genotypes in Data Table 1 for each of the
following traits.
Data Table 1 Phenotype and Genotype
Trait
Dimpled Chin
Free Ear Lobe
Phenotype
Genotype from
Parent A
Phenotype
Genotype from
Parent B
dimpled chin
Dd
attached ear lobe
aa
Ability to Taste
PTC Strips
ability to taste
Interlocking
Fingers
right thumb over left
Mid-digital Hair
Bent Little Finger
Widows Peak
Pp
ff
hair on joints
HH
little finger bends
Bb
straight hairline
ww
Hitchhikers
Thumb
bent thumb
Blue or Green
Eyes
green eyes
Rolled Tongue
TT
ee
rolled tongue
Ll
Prepared Punnett Squares
1
Offspring
There are 20 squares provided, two for each trait. Use these Punnett squares to show both the
genotype and phenotype ratios for each of the traits.
Dimpled Chin
Parent A
Pare
nt B
Free
Ear lobe
Parent A
Parent A
Pare
nt B
Parent A
PTC Strips
Parent A
Pare
nt B
Parent A
Pare
nt B
Mid-digital
hair
Free
Ear lobe
Pare
nt B
Pare
nt B
Interlocking
fingers
Parent A
Pare
nt B
Pare
nt
B
PTC Strips
Dimpled Chin
Interlocking
fingers
Parent A
Pare
nt B
Parent A
Mid-digital
hair
Pare
nt B
Parent A
Lab Report
Bent Little
Finger
Name: Kwesi
Section
Parent A
Bent Little
Finger
Pare
nt B
Widows Peak
Pare
nt B
Parent A
Widows Peak
Pare
nt B
Hitchhikers
Thumb
Parent A
Hitchhikers
Thumb
Parent A
Pare
nt B
Parent A
Blue or Green
Eyes
Pare
nt B
Rolled
Tongue
Parent A
Pare
nt B
Pare
nt B
Blue or Green
Eyes
Parent A
Parent A
Pare
nt B
Parent A
Rolled
Tongue
Pare
nt B
Pare
nt B
3
Parent A
Questions
1.
As Parent B, how many recessive traits did you express? What were they?
2. As Parent B, how many dominant traits did you express? What were they?
3. As Parent B, what is the likelihood or chances of you passing a dominant allele onto
your offspring for the following traits
a. Dimpled chin
b. Free ear lobe
c. Ability to taste PTC
d. Brown eyes
4. What is the likelihood or chances of your offspring receiving a recessive allele for the
following traits
a. Widows peak
b. Hitchhikers thumb
c. Green eyes
d. Rolled tongue
5. While the traits studied in Exercise 1 were hypothetical genetic traits, what type of
genetic traits do you think are important to study and predict?

Phenotype and Genotype Exercise 1 Observing Phenotype Characteristics Answer

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