8 Sex-linked inheritence and Human Genetics+ 9 Protein Synthesis and Genetic Engineering

 

1.What is a "Dihybrid cross"?


2. Fill in the appropriate blank cells in the Punnet Square, below:

 

RSu

Rsu

 

rsu

RSu

 

RRSusu  purple/smooth

RrEE  purple/smooth

 

 

 

RRsusu  purple/smooth

RrSusu  purple/smooth

Rrsusu  purple/wrinkled

rSu

 

RrSusu  purple/smooth

rrSuSu  Yellow/smooth

rrSu  Yellow/smooth

rsu

 

Rrsusu  purple/wrinkled

 

rrsusu  Yellow/wrinkled


3. In the above Punnet square, if you counted 10 corn kernals that were yellow and wrinkled, about how many would you expect to find with the purple/smooth phenotype?


4. 7. Name three differences between RNA and DNA structure.


5. list 2 human diseases that are "sex-linked".

6. How many of the hypothetical "babies" produced in your class were identical?

7. How many alleles control hair color in humans? How many for eye color? What do we call the kind of dominance these traits represent?

8. What is the ampicillin antibiotic used for in the upcoming lab?

9. How do you read the genetic code chart in figure 9.2 and what do the letters represent?