Complete the Biology Labs

Lab 5 Blood Groups and Classical Genetics

After reading the information, viewing the videos complete the assignment below. Make sure to use complete sentences.

1. Define the terms below. Do not cut and paste! Use your own words so that you will understand better.

a. Gene:

b. Allele:

c. Genotype:

d. Phenotype:

e. Dominant:

f. Recessive:

g. Homozygous:

h. Heterozygous:

2. Complete the following table.

Genotype	Phenotype	Homozygous or Heterozygous
IAIA
IBIB
IAIB
IOIO
IBIO
IAIO

3. Complete the table below by checking which trait you have.

(Refer to ‘Page 4 Observation of Your Own Genetic Inheritance’)

	Dominant Trait	Recessive Trait
1	Able to roll tongue		Not able to roll tongue
2	Free ear lobe		Attached ear lobes
3	Widow’s peak hairline		Straight hairline
4	Straight thumb		Curved thumb
5	Mid-digit hair present		Mid-digit hair absent
6	Left thumb over right		Right thumb over left

4. Out of the six genetic inheritance traits, how many are dominant for you? How many are recessive?

Dominant: _______

Recessive: _______

5. Using a Punnett square, determine the possible genotypes, phenotypes, and ratios of offspring for the following individuals: Show your work!

Pete: blood type O

Jennifer: blood type AB

Possible genotypes of offspring: _________________________________

Genotypic Ratio: __________________

Possible phenotypes of offspring: _________________________________

Phenotypic Ratio: __________________

6. Using a Punnett square, determine the possible genotypes, phenotypes, and ratios of offspring for the following individuals: Show your work!

John: blood type A (heterozygous)

Linda: blood type B (heterozygous)

Possible genotypes of offspring: _________________________________

Genotypic Ratio: __________________

Possible phenotypes of offspring: _________________________________

Phenotypic Ratio: __________________

7. Using a Punnett square, determine the possible genotypes, phenotypes, and ratios of offspring for the following individuals: Show your work!

Michael: Brown eyes (homozygous)

Karen: Brown eyes (heterozygous)

Possible genotypes of offspring: _________________________________

Genotypic Ratio: __________________

Possible phenotypes of offspring: _________________________________

Phenotypic Ratio: __________________

8. Using a Punnett square, determine the possible genotypes, phenotypes, and ratios of offspring for the following individuals: Show your work!

Donovan: Brown eyes (homozygous)

Shay: blue eyes

Possible genotypes of offspring: _________________________________

Genotypic Ratio: __________________

Possible phenotypes of offspring: _________________________________

Phenotypic Ratio: __________________