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WorksheetsLife Sci: Punnett Squares
Total questions: 20
Worksheet time: 15mins
Brown eyes (B) tend to be dominant whereas blue eyes (b) tend to be recessive. Parents with heterozygous genes want to know: what is the likelihood of them having a child with blue eyes?
0%
25%
75%
100%
Which of the following would complete this Punnett Square?
aa
AA
Aa
Which of the following must be the father's genotype?
RR
Rr
rr
The genotype for a yellow plant is...
Complete the punnett square for the following scenario: In fruit flies, red eyes are dominant to white eyes. The female fly has white eyes and the male fly has homozygous dominant red eyes.
Complete the punnett square for the following scenario: A woman who is a carrier (heterozygous) for Cystic Fibrosis marries a man who has Cystic Fibrosis, a recessive disease.
Short = S
Short = t
Short = T
Short = tt
Which of the following genotypes is Purebred? Select 2 answers.
aA
Aa
AA
aa
Different versions of a trait (tall or short, white or purple) are called
alleles
traits
versions
genes
If something is heterozygous, it is also _____
purebred
hybrid
dominant
recessive
If A = red fur and a = white fur, what color fur would Aa be?
red
white
purple
blue
Match the following vocabulary words with their definitions
Genetics
The Scientific study of heredity
Heredity
The process in which characteristics are passed down from parents to offspring.
Trait
An organism's characteristics.
Genotype
The specific genetic make up or "code" for an individual.
Phenotype
The total physical appearance for an individual.
What are the possible genotypes for this cross?
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
