What is the first step in determining the genotype ratio using a Punnett square?

Genotype And Phenotype Ratios In Genetics

Interactive Video
•
Mathematics, Biology, Science
•
9th - 10th Grade
•
Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the phenotype ratio
Calculate the percentage of each trait
Identify the homozygous dominant, heterozygous, and homozygous recessive
Determine the number of offspring
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the tall vs. short trait example, what is the percentage of heterozygous genotypes?
100%
25%
50%
75%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you determine the phenotype ratio for the tall vs. short trait?
Count the number of each genotype
Count the number of each phenotype
Count the number of dominant traits
Count the number of recessive traits
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a capital letter in determining phenotype?
It indicates a heterozygous trait
It indicates a codominant trait
It indicates a dominant trait
It indicates a recessive trait
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you convert a genotype ratio to a percentage?
Use the number of boxes in the Punnett square
Multiply by 100
Divide by the total number of genotypes
Add the ratios together
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the red and white flowers example, what is the genotype ratio if you drop the zero?
1:2
2:2
1:1
2:1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the phenotype percentage for red flowers in the red and white flowers example?
100%
75%
50%
25%
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