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WorksheetsUnit 4 Review
Total questions: 14
Worksheet time: 1hrs 10mins
Pea plants are either tall or short. In a heterozygous pea plant, the allele for tall hides the effects of the short allele. Which of the following best describes the short allele?
Dominant
Recessive
Codominant
Incompletely dominant
What do the letters outside of the Punnett Square represent?
The offspring's alleles
All the alleles possible for the gene
The parent's alleles
The possible traits
What do the letters inside the Punnett Square represent?
The alleles all of the offspring will inherit
The possible alleles the offspring could inherit
The parent's alleles that will be given to all the offspring
The possible parent alleles
Which of the following examples follows the Law of Segregation for the gene controlling flower color in pea plants where purple is dominant to white?
A heterozygous purple plant and a white plant will produce all white offspring
A homozygous purple plant and a white plant will produce all purple plants
Two heterozygous purple plants will produce all white offspring
Two white plants will produce some purple offspring
Brown eyes (B) are dominant to blue eyes (b). How many genotypes will result in the phenotype of brown eyes?
1
2
3
4
Brown eyes (B) are dominant to blue eyes (b). How many genotypes will result in the phenotype of blue eyes?
1
2
3
4
A man who is heterozygous for brown eyes marries a blue eyed woman. What would the expected phenotypic ratio be in the offspring?
1:1
2:1
3:1
4:1
Black fur is dominant to white fur in guinea pigs. According to the law of dominance, which cross would produce 25% white and 75% black offspring.
Two homozygous black guinea pigs
Two homozygous white guinea pigs
Two heterozygous guinea pigs
A heterozygous black and a white guinea pig
Round pea pods are dominant to wrinkles pea pods. If two round pea plants have offspring that are wrinkled, what must be their genotypes?
AA X AA
Aa X aa
Aa X AA
Aa X Aa
In snapdragons, red is incompletely dominant to white. If you crossed a red flower and a white flower, what would you expect to the offspring?
100% red
50% red, 50% white
25% red, 50% pink, 25% white
100% pink
You observe a cross between two cows, one with white fur and the other with black. You notice that all of the their offspring have black and white spots. What type of inheritance have you observed?
codominance
incomplete dominance
dominance
impossible to tell from one cross
Humans can either have wet ear wax (W) or dry ear wax (w). You have wet ear wax and want to know if you are homozygous or heterozygous. Besides genetic testing, what is the only way to find out what type of ear wax you have?
Have offspring with someone who has wet ear wax
Have offspring with someone who has dry ear wax
Which of the following pictures represents the law of independent assortment?
Which of the following pictures represents the law of segregation?
