Blood Groups and Classical Genetics

Blood Groups and Classical Genetics

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: __________________

Blood Groups

Blood Groups