Question

1. Which genotype(s) and phenotype for fur length are dominant?

Answer 1

Answer:

Here is an example of my Heredity Lab Report for FLVS if anyone needs it.

Explanation:

(it is a link)

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Answer 2

Complete question:

You will find the complete problem in the attached files, where all the proposed crosses are detailed.

Answer:

1. Which genotype(s) and phenotype for fur length are dominant?  

• Genotype: FF + Ff
• Phenotype: Short fur

2. Which genotype(s) and phenotype for fur length are recessive?

• Genotype: ff
• Phenotype: Long fur

Explanation:

Available data:

• F is the dominant allele that codifies for short fur
• f is the recessive allele that codifies for long fur

CROSSES:

1) Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see what type of offspring?  

• all short fur;  
• some short and some long fur;  
• all long fur offspring.

Cross:        FF   x   Ff

Gametes) F   F     F   f

Punnet square)   F         F

                  F     FF       FF

                  f      Ff        Ff

F1) Genotype:

     2/4 = 1/2 = 50% FF

     2/4 = 1/2 = 50% Ff

     Phenotype:

    4/4 = 100% Short-fured individuals

2) Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see what type of offspring? Pick 1)

• all short fur;  
• some short and some long fur;  
• all long fur offspring.

Cross:         Ff   x   Ff

Gametes) F   f      F   f

Punnet square)   F         f

                  F     FF       Ff

                  f      Ff        ff

F1) Genotype:

     1/4 = 25% FF

     2/4 = 1/2 = 50% Ff

     1/4 = 25% ff

     Phenotype:

    3/4 = 75% Short-fured individuals

    1/4 = 25% long-fured individuals

3) Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see what type of offspring? Pick 1)

• all short fur;  
• some short and some long fur;  
• all long fur offspring.

Cross:        ff   x   ff

Gametes) f   f     f   f

Punnet square)   f         f

                      f     ff       ff

                      f      ff       ff

F1) Genotype:

     4/4 = 100% ff

     Phenotype:

    4/4 = 100% long-fured individuals  

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