WorksheetsPunnett Squares
Total questions: 21
Worksheet time: 41mins
The physical appearance of an organism based on traits
Genotype
Phenotype
Meiosis
Genetics
The genotypes codes for
phenotype (physical trait)
DNA
allele
The letters that represent different forms of a gene.
Allele
Mutation
Trait
Trait of an organism that can be HIDDEN by the dominant form of a trait.
Recessive Trait
Phenotype
Allele
Having two of the SAME alleles for a trait.
Recessive Trait
Homozygous
Genotype
The trait that overshadows and is expressed.
Dominant Trait
Phenotype
Allele
Having two DIFFERENT alleles for a trait.
Recessive Trait
Heterozygous
Genotype
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
recessive
dominant
both
T - tall and t = short
In the Punnett square, what belongs in the missing square?
tt
Tt
TT
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
0%
25%
50%
75%
Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?
25%
1%
10%
0%
What is ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness? T = tall t = short
0 in 4
1 in 4
2 in 4
4 in 4
tt
