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Copy of Gene Expression and Cell Specialization CFU 25 - 26 (5/2/2026)

Last updated about 3 hours ago

7 Nsɛmmisa

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BIO.6.B

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BIO.6.B

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BIO.6.B

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BIO.5.B

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Gene expression is --

an experimental process that involves creating new genes using lipids and water molecules.

a semiregulated process that involves the combination of male and female genes in sex cells.

a random process that involves the coupling of mutated chromosomes in a gene.

a regulated process that involves controlling the amount of proteins produced by a gene.

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

How does transcription and translation result in the expression of genes?

Transcription makes DNA. Translation uses the DNA to make proteins which expresses the gene.

Translation makes DNA. Transcription uses the DNA to make proteins which expresses the gene.

Transcription reads the DNA to make the RNA. Translation uses the RNA to make proteins which expresses the gene.

Translation reads the DNA to make RNA. Transcription uses the RNA to make proteins which expresses the gene.

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

The arctic fox inhabits northern areas of North America. The same arctic fox is shown in the drawing at different times of the year.
What causes this change in fur color?

The alleles for fur color change as the arctic fox grows older.

Gene expression for fur color is regulated by latitude.

The arctic fox has two traits for fur color that are determined at birth.

Gene expression for fur color is regulated by temperature.

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Environmental factors, such as temperature, diet, or light, can cause cells to activate different genes at different times. For example, flamingos have pink feathers whenever they eat shrimp because they produce proteins called carotenoids. However, they turn pale white if they do not eat enough shrimp.
Which of these best explains the effect of environmental factors on gene expression?

Environmental factors cause cells mutate as a survival response.

Environmental factors do not impact the expression of genes for an organism.

Environmental factors cause cells to use specific sections of DNA to express specific proteins.

Environmental factors cause cells to replicate at different rates.

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Lactose intolerance is a condition common in adults that makes it more difficult to digest lactose, the sugar found in dairy products. The data table below shows the amount of lactose digested at various age groups.
Based on the information in the table, why is lactose intolerance more common in adults than infants?

Adults consume more dairy products, so they make more of the lactase enzyme.

Adults have less intake of lactose, so they stop making a lot of the lactase enzyme.

Lactose digested is the same in infants and adults, so they make the same amount of lactase enzyme.

People can no longer make lactase once they become teens and young adults.

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

Testosterone is a hormone found in both males and females. Testosterone levels change over time. During puberty, certain hormones testosterone trigger changes in the body. For example, many boys experience voice cracking as their voice deepens or start to produce more body odor as they sweat.
What factor best explains the variation in testosterone levels in males and females?

The genes responsible for testosterone are turned on and off at certain times.

The genes responsible for testosterone are always activated in equal rates in both males and females.

The genes responsible for testosterone are always deactivated in both males and females.

The genes responsible for testosterone are always activated in in males and deactivated in females.

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

The diagram shows a process that occurs during the development of an organism.
Which statement explains how the different cell types in the image are formed?

Each cell type expresses different genes at different times.

Each cell type uses its own unique replication process.

Each cell type contains a different part of the original DNA.