Genetics Unit Test

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

Genetics Unit Test

Welcome to the Genetics Unit Test!

Please fill out this form carefully. Required questions are indicated by a red * (see right after "First Name"). The form will not let you submit it unless you have completed all of these. For the multiple choice, select the best answer by clicking in the little circle next to your choice. For the short answer, please type in the box provided.

All questions that ask "How confident are you with your answer" are completely optional. They will not be graded. If you complete ALL of these, they will count as extra credit.

If you have any questions or technical difficulties, please raise your and and we will come help you out!

First Name *

Last Name *

Student Number *

Teacher *

Mrs. W

Mr. R

Class Hour *

Hour 1

Hour 4

Hour 6

E-mail *

Use the image below with question 1

1) Which of the following phrases describes the Punnett square in Figure 6.1? *

a) 1/4 probability of heterozygous offspring

b) monohybrid heterozygous-heterozygous cross

c) 3/4 probability of homozygous offspring

d) dihybrid heterozygous-heterozygous cross

How confident are you with your answer to number 1?

Not at all

Completely

Clear selection

2) In a genotype for plant height, such as Bb, what does each letter represent? *

a) one allele

b) one genome

c) one gene

d) one gamete

How confident are you with your answer to number 2?

Not at all

Completely

Clear selection

3) The phenotype of an organism *

a) cannot be seen.

b) is the physical appearance of a trait.

c) occurs only in dominant individuals.

d) is used to represent its genetic composition.

How confident are you with your answer to number 3?

Not at all

Completely

Clear selection

4) Recessive alleles may not be expressed because they are *

a) masked by a dominant allele.

b) the least common allele in a population.

c) the most common allele in a population.

d) less likely to have crossing over.

How confident are you with your answer to number 4?

Not at all

Completely

Clear selection

5) A distinguishing characteristic (such as a widow's peak) that can be inherited is a(n) *

a) Cross

b) Allele

c) Gene

d) Trait

How confident are you with your answer to number 5?

Not at all

Completely

Clear selection

Use the image below with question 6

6) Which pair of genes in Figure 6.2 would be most likely to be inherited together? *

a) A and B

b) A and C

c) A and D

d) A and E

How confident are you with your answer to number 6?

Not at all

Completely

Clear selection

7) Imagine two heterozygous parents. Each has a dominant allele B for brown eyes and a recessive allele b for blue eyes. The phenotypic ratio for brown:blue eyes in their children is *

a) 1:2:1.

b) 3:1.

c) 9:3:3:1.

d) 1:2:1.

How confident are you with your answer to number 7?

Not at all

Completely

Clear selection

8) One parent is homozygous for a recessive allele and one parent is heterozygous for a recessive allele in an autosomal dominant genetic disorder. What is the chance that a child of those two parents will have the disorder? *

a) 100%

b) 75%

c) 50%

d) 25%

How confident are you with your answer to number 8?

Not at all

Completely

Clear selection

Use the image below with questions 9 and 10

9) What do the shaded squares represent? *

a) Females without phenotype

b) Females with phenotype

c) Males without phenotype

d) Males with phenotype

How confident are you with your answer to number 9?

Not at all

Completely

Clear selection

10) What method of studying genetic inheritance is shown in Figure 7.4? *

a) Pedigree chart

b) Punnett square

c) Gene linkage map

d) Karyotype

How confident are you with your answer to number 10?

Not at all

Completely

Clear selection

11) A mom has type AB blood. A father has type O blood. How many possible phenotypes can be produced in their offspring? *

a) 1

b) 2

c) 3

d) 4

How confident are you with your answer to number 11?

Not at all

Completely

Clear selection

12) A female is born with attached earlobes, which is a recessive phenotype. Which of the following statements about her parents must be true? *

a) Neither has the codominant allele.

b) Her father has an inactivated allele.

c) Both parents have the recessive allele.

d) Her mother carries the dominant allele.

How confident are you with your answer to number 12?

Not at all

Completely

Clear selection

13) Suppose a person is homozygous recessive for a recessive genetic disorder. This genotype means that the person *

a) is a carrier for the disorder.

b) has the genetic disorder.

c) cannot pass on the gene.

d) is healthy and is not a carrier.

How confident are you with your answer to number 13?

Not at all

Completely

Clear selection

14) Sex-linked disorders appear more often in males because the Y chromosome *

a) does not carry sex-linked genes.

b) affects phenotype strongly.

c) has genes only for sex determination.

d) is smaller than the X chromosome.

How confident are you with your answer to number 14?

Not at all

Completely

Clear selection

Use the image below with questions 15 and 16

15) The picture above is an example of a human *

a) Pedigree.

b) Genome.

c) Karyotype.

d) None of the above.

How confident are you with your answer to number 15?

Not at all

Completely

Clear selection

16) Identify the sex of the person represented in the image above. *

a) Male.

b) Female.

c) Neither.

d) Cannot be determined.

How confident are you with your answer to number 16?

Not at all

Completely

Clear selection

17) Suppose a mouse is homozygous for alleles that produce black fur and homozygous for alleles of an epistatic gene that produces albinism. What color fur will the mouse have? *

a) Grey.

b) Black.

c) Brown.

d) White.

How confident are you with your answer to number 17?

Not at all

Completely

Clear selection

18) An XX female will express a recessive sex-linked trait if she *

a) has several codominant alleles for the gene.

b) fully expresses her Y chromosome.

c) is homozygous for the recessive allele.

d) carries the allele on an epistatic gene.

How confident are you with your answer to number 18?

Not at all

Completely

Clear selection

Use the image below with questions 19 and 20

19) What is the phenotype of the unlabeled pea plant in the first generation? Type your answer in the space below. *

How confident are you with your answer to number 19?

Not at all

Completely

Clear selection

20) What are the genotypes of parental generation? *

a) C1C2 and C2C2

b) C1C1 and C2C1

c) C2C2 and C2C2

d) C1C1 and C2C2

How confident are you with your answer to number 20?

Not at all

Completely

Clear selection

21) Two genes cross over 6% of the time. This percentage means that the genes are *

a) not inherited together in 6 out of 100 offspring.

b) inactivated in 6 out of 100 offspring.

c) incompletely dominant in 6 out of 100 offspring.

d) on sex chromosomes in 6 out of 100 offspring.

How confident are you with your answer to number 21?

Not at all

Completely

Clear selection

22) Human height occurs in a continuous range because it is affected by the interaction of several genes, making it a *

a) autosomal trait.

b) sex-linked trait.

c) polygenic trait.

d) codominant trait.

How confident are you with your answer to number 22?

Not at all

Completely

Clear selection

23) Gene expression is influenced by many factors. Which of the following is a factor in gene expression? *

a) karyotype

b) pedigree

c) environment

d) phenotype

How confident are you with your answer to number 23?

Not at all

Completely

Clear selection

24) Which law states that organisms inherit two copies of each gene and donate one copy to each of their offspring? *

a) law of genetic linkage

b) law of segregation

c) law of independent assortment

d) law of inheritance

How confident are you with your answer to number 24?

Not at all

Completely

Clear selection

25) Mendel’s observation that traits are inherited separately was based on which set of experiments? *

a) monohybrid crosses

b) purebred crosses

c) sample crosses

d) dihybrid crosses

How confident are you with your answer to number 25?

Not at all

Completely

Clear selection

26) In fruit flies, Long wings (L) is dominant to short wings (l). A heterozygous male is crossed with a short winged female. What is the genotype of the male? *

a) LL

b) Ll

c) ll

d) cannot be determined

How confident are you with your answer to number 26?

Not at all

Completely

Clear selection

27) Which of the following genotypes CANNOT result from this cross in question 26? *

a) LL

b) Ll

c) ll

d) None of the above. All genotypes can be produced.

How confident are you with your answer to number 27?

Not at all

Completely

Clear selection

28) In the following sentence, fill in the correct word. In a _____________ organism, the _________ is written as TT. *

a) Heterozygous // phenotype

b) Homologous-recessive // genotype

c) Homozygous-dominant // genotype

d) Homologous-dominant // genotype

How confident are you with your answer to number 28?

Not at all

Completely

Clear selection

29) In the "Build a Baby" Lab, you and your partner both had heterozygous genotypes. How many possible genotypes could be produced for each trait? *

a) 1

b) 2

c) 3

d) 4

How confident are you with your answer to number 29?

Not at all

Completely

Clear selection

30) In a type of flower known as snapdragons, red (C1) flowers are incompletely dominant to white flowers (C2). Heterozygous genotypes result in pink flowers. In a cross between two pink flowers, what percent of the offspring should be white? (Just enter the number, not %) *

How confident are you with your answer to number 30?

Not at all

Completely

Clear selection

Submit

Clear form

Never submit passwords through Google Forms.

This form was created inside of University of Michigan.

Does this form look suspicious? Report

Forms