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Bibliotek

Copy of Academic Unit 6 Genetics Test Review 2026 (5/2/2026)

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Sidst opdateret 20 days ago
26 Spørgsmål
Warm Up
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Test Review
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B.C.6F
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BIO.8.B
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Spørgsmål 1
1.

A model of the color patterns in rabbits is shown below.

Which Punnett square will produce a 50% spotted and a 50% white coat rabbits?

Spørgsmål 2
2.

If some traits are dominant and some are recessive, how do we see both traits in the population?

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3.

In cats the allele for a black coat color (B) is dominant over the allele for a white coat color (b).

If a homozygous dominant black cat is crossed with a heterozygous black cat, which of the following genotypic ratios can be expected?

In cats, yellow eyes are dominant to green eyes.

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Spørgsmål 4
4.

In cats, yellow eyes are dominant to green eyes.

Dominant allele =

recessive allele =

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Spørgsmål 5
5.

In cats, yellow eyes are dominant to green eyes.

A cat is homozygous dominant for this trait.

genotype -

Spørgsmål 6
6.

In wasps, stinger shape is controlled by two different alleles. The allele for a pointed stinger is (P) and the allele for round stinger is (p).

When two heterozygous wasps are crossed, what percentage of their offspring is expected to be homozygous for round stinger?

Spørgsmål 7
7.

In pigs coat color is determined by codominance. Possible phenotypes and genotypes of coat colors are shown below.

Which table shows the expected phenotypes of offspring resulting from a cross between a brown-white pig and another brown-white pig?

Spørgsmål 8
8.

What are the blood types of the possible children that a man with type AB could produce with a woman who is type AB?

Select all that apply

Spørgsmål 9
9.

A genetic cross involving two unlinked genes is represented.

GgSS x ggSs

Which genotype is NOT possible in the offspring produced by the cross?

Spørgsmål 10
10.

In sea turtles, a ridged shell (R) is dominant over a smooth shell (r), and green colored skin (G) is dominant over brown colored skin (g).

What is the expected phenotypic ratio of the offspring of an RrGg x RrGg cross?

Spørgsmål 11
11.

Match the vocabulary terms with their definition.

Draggable emnearrow_right_altKorresponderende emne

Genotype

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An allele that is represented by an uppercase letter (Big Letter)

Phenotype

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An allele that is represented by an lowercase letter (small Letter)

Dominant Allele

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The physical trait a person shows.

Example: red hair

Recessive Allele

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The two alleles (letters) combination for a given trait

Example: BB, Bb, or bb

Spørgsmål 12
12.

In cocker spaniels the allele for a black coat color (B) is dominant over the allele for a brown coat color (b).

If a homozygous recessive brown cocker spaniel is crossed with a heterozygous black cocker spaniel, which of the following genotypic ratios can be expected?

Spørgsmål 13
13.

In the cross below, what are the genotypes of the parents?

Andre svarmuligheder:

H

h

Spørgsmål 14
14.

In dogs, having furnishings (F) is dominant to not having furnishing (f). Jose's dog has no furnishings (ff).

The appearance of a recessive trait (no furnishings) in an animal’s offspring most likely means that…

Spørgsmål 15
15.

Cystic fibrosis is considered an "autosomal recessive" genetic disorder (c), meaning that a person must inherit two recessive alleles of a mutated gene (one from each parent) to develop the disease. Not having this condition is dominant (C) to having Cystic Fibrosis (c).

Which circle graph shows the genotype probability when a female with Cystic Fibrosis mates with a male that is homozygous dominant?

Spørgsmål 16
16.

In tigers, whiskers length can either be short or long. The allele for long whiskers (L) is dominant to short whiskers (l).

If a female tiger that has short whiskers mates with a male tiger that is homozygous dominant, what percent of their offspring will likely have long whiskers?

Enter your answer in the box. Your answer must be a whole number.

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17.

The inheritance pattern for an autosomal recessive trait is shown in the pedigree. Shaded symbols represent individuals that express the recessive (small) trait.

Identify the genotypes for individuals 1 and 2 in the first generation.

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18.

In giraffes, long necks (L) are dominant to short necks (l) and spots (S) are dominant to no spots (s). A heterozygous long neck giraffe without spots mates with a short neck giraffe who is heterozygous for having spots. What would the genotype of an offspring with short necks and no spots?

In humans, having dimples is dominant to no dimples. Gina is hybrid for having dimples and her husband is heterozygous for the trait.

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Spørgsmål 19
19.

Which of the following represents the parents?

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Spørgsmål 21
21.

A specific type of retrievers can have a black coat color, a white coat color, or a grey coat color. The allele for a black retriever has a genotype of CB is incompletely dominant over the allele for a white retriever with a genotype of CW. So heterozygous retrievers have gray coat color.

Which cross below has the highest probability of producing a gray coat color offspring?

Spørgsmål 22
22.

In wolves, black is dominant to white.

What are the expected genotypes of the offspring if a homozygous black wolf mates with a white wolf?

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23.

What are the blood types of the possible children that a woman with type O could produce with a man who is type B?

Spørgsmål 24
24.

Duchenne muscular dystrophy is a sex-linked trait found only on the X chromosome. Not having this disease is dominant (N) to having this disease (n). A mother who is a carrier for this disease mates with a father that is not affected.

The couple have a daughter. What are the chances she is a carrier for the disorder?

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25.

The diagram below shows the inheritance of a trait. The dominant trait is represented by a capital letter R and the recessive trait is represented by a lowercase letter r.

What would be the genotype of the offspring produced?

Spørgsmål 26
26.

Cystic fibrosis is an autosomal recessive disorder that impacts the ability of the lungs to remove mucus. The figure shows a family affected by Cystic fibrosis.

What is the probability that Child 1 will have Cystic fibrosis?

Spørgsmål 20
20.

When a heterozygous dimpled man mates with a heterozygous dimpled woman, what is the expected outcome of their children?