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WorksheetsMendelian Genetics Quiz
Total questions: 20
Worksheet time: 5hrs 0mins
An allele that is only expressed if the organism is homozygous for the trait. These alleles can be masked by other alleles.
phenotype
genotype
dominant
recessive
An allele with the ability to mask another allele, represented with a capital letter (ex: B)
phenotype
genotype
dominant
recessive
An organism’s combination of alleles, written with 2 letters (ex: BB, Bb, or bb)
phenotype
genotype
dominant
recessive
An organism’s physical expression of its genes (ex: brown hair, tall, freckled)
phenotype
genotype
dominant
recessive
If an organism has 2 different alleles for a trait, it is known as _____ or a _____.
Choose the 2 terms that apply.
heterozygous
homozygous
purebred
hybrid
If an organism has 2 identical alleles for a trait, it is known as _____ or a _____.
Choose the 2 terms that apply.
heterozygous
homozygous
purebred
hybrid
States that genes for different traits are inherited independently of one another. (ex:pea color and pea shape)
Law of Dominance
Law of Independent Assortment
Law of Segregation
States that the two alleles for a trait separate during gamete formation and that a parent will pass down one allele at random to their offspring.
Law of Dominance
Law of Independent Assortment
Law of Segregation
In rabbits, brown fur color is dominant to white fur color. Which of the following genotypes will result in brown fur?
Choose all that apply.
BB
bb
Bb
In rabbits, brown fur color is dominant to white fur color. Which of the following genotypes will result in white fur?
Choose all that apply.
BB
bb
Bb
In rabbits, brown fur color is dominant to white fur color. A heterozygous brown rabbit mates with a white rabbit. Which of the following represents the cross of the two parents?
BB x bb
Bb x bb
bb x bb
Bb x Bb
When the Punnett Square is completed, which of the following would be in box #1?
B
BB
Bb
bb
When the Punnett Square is completed, which of the following would be in box #2?
B
b
Bb
bb
When the Punnett Square is completed, which of the following would be in box #3?
B
b
Bb
bb
When the Punnett Square is completed, which of the following would be in box #4?
B
b
Bb
bb
Which of the following shows the ratio of brown:white rabbits for the offspring of this cross?
1:1
1:4
3:1
4:0
Complete the Punnett Square Shown and answer the following questions. Based on the Punnett Square, what percentage of the offspring of this cross would be expected to be brown?
0%
25%
50%
100%
Complete the Punnett Square Shown and answer the following questions. Based on the Punnett Square, what percentage of the offspring of this cross would be expected to be white?
0%
25%
50%
100%
What is the probability ratio that their offspring will have yellow and smooth peas?
1:16
3:16
9:16
12:16
What is the probability ratio that their offspring will have green and wrinkled peas?
1:16
3:16
4:16
9:16
