Question

Hypothesis:

In this section, please include the if/then statements you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.

Procedure:
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation.
Remember, the test variable is what is changing in this investigation. The outcome variable is what you are measuring in this investigation.
Test variable (independent variable):
Outcome variable (dependent variable):

Data:
Record the data from each trial in the data chart below. Be sure to fill in the chart completely.
Test One
Parent 1: FF
Parent 2: Ff




Phenotype ratio:
________ : ________
short fur : long fur


Test Two
Parent 1: Ff
Parent 2: Ff




Phenotype ratio:
________ : ________
short fur : long fur


Test Three
Parent 1: ff
Parent 2: ff




Phenotype ratio:
________ : ________
short fur : long fur

Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
1. Which genotype(s) and phenotype for fur length are dominant?
2. Which genotype(s) and phenotype for fur length are recessive?
3. If you have a hamster with short fur, what possible genotypes could the hamster have?
4. If you have a hamster with long fur, what possible genotypes could the hamster have?
5. Did your data support your hypotheses? Use evidence to support your answer for each test.
o Test One:
o Test Two:
o Test Three:
6. Which hamsters are the parents of the mystery hamster? Include evidence to prove that they are the correct parents.

Answer 1

The genotype FF and Ff for short fur length are dominant.

The genotype ff for long fur length is recessive.

If you have a hamster with short fur, the possible genotypes could be FF or Ff.

If you have a hamster with long fur, the genotype must be ff.

The data collected supports the hypotheses as follows:

Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see all short fur offspring. The data showed all short fur offspring, supporting the hypothesis.

Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see a ratio of 3:1 short fur to long fur offspring. The data showed a ratio of 3:1 short fur to long fur offspring, supporting the hypothesis.

Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see all long fur offspring. The data showed all long fur offspring, supporting the hypothesis.

Without additional information, we cannot determine the parents of the mystery hamster. We need to perform a cross in order to determine the possible genotypes and deduce the parents of the mystery hamster.