Question

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:
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

Answer 1

Answer: Test variable (independent variable): Presence or absence of dominant allele (F)

Outcome variable (dependent variable): Fur length (short or long)

Data Chart:

Test One

Parent 1: Ff

Parent 2: Ff

Offspring:

Ff

Ff

ff

Ff

Phenotype ratio: 3 short fur : 1 long fur

Test Two

Parent 1: Ff

Parent 2: Ff

Offspring:

FF

Ff

Ff

ff

Phenotype ratio: 3 short fur : 1 long fur

Test Three

Parent 1: ff

Parent 2: ff

Offspring:

ff

ff

ff

ff

Phenotype ratio: 4 short fur : 0 long fur