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WorksheetsPunnett Square Exit Ticket
Total questions: 25
Worksheet time: 29mins
Rr, RR, or rr are examples of a _______.
genotype
phenotype
hybrid
purebred
The physical appearance of an organism is known as a _________ Ex: blue eyes, red hair
dominant allele
recessive allele
genotype
phenotype
Organisms that have (2) different alleles for a trait are said to be ______ (ex: Tt)
homozygous
heterozygous
complete dominance
incomplete dominance
Cross a male gerbil with tan fur (Tt) with a female gerbil with tan fur (Tt). Both of the parent genotypes are ___________.
homozygous dominant
hybrid
homozygous recessive
purebred
A purebred tall (TT) pea plant is crossed with a purebred short (tt) pea plant. All the offspring are tall. What is the most likely genotype of the offspring? ______ (use scratch paper to figure it out
Tt
tt
TT
none are correct
The diploid number (2n) of chromosomes in a certain species is 20. How many chromosomes would be found in a bone cell of the same fish?
10
20
40
15
Tall, short, red hair, dark skin, freckles are all examples of ______________.
genotypes
phenotypes
dominant traits
recessive traits
Using the Monohybrid Cross Punnett square, what is the ratio for green pea pods?
1:4
1:2
3:4
4:4
Using the punnett square, the parent genotypes are described as __________?
homozygous
purebred
heterzygous
none are correct
Using the Punnett square, the father's genes are heterozygous (Bb) and the mother's genes are _____?
homozygous dominant
hybrid
homozygous recessive
codominant
What is the percentage of having a tall offspring?
25%
50%
75%
100%
The father has blue eyes (bb) and the mother has brown eyes (BB). What percentage of children will have brown eyes?
25%
50%
75%
100%
A monohybrid cross uses a 4 square punnett square. How many trait(s) does it cross?
1
2
3
4
Complete the missing offspring in the Monohybrid cross
Aa
aa
AA
A partial Punnett square is shown in the image.
Given the offspring in the Punnett Square, what is the most likely genotype of the parents?
Both parents are heterozygous.
Both parents are homozygous dominant.
One parent is homozygous recessive and the other parent is heterozygous.
One parent is homozygous dominant and the other parent is heterozygous.
rr-wrinkled
What is the genotype for wrinkled?
According to the Punnett Square, what is the probability of an offspring being white?
