{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Ɛhia

1

A recent study examined the effects of temperature change on developing coral embryos. Normal temperature in the Caribbean Sea during the spawning season is 27.5°C. The data table shows the development 16 hours after fertilization of three groups of embryos at different temperatures.
Which statement explains the relationship between temperature and the growth and development of coral embryos?

An embryo's environment can cause changes to genes during development.

Warmer temperatures caused fewer embryos to develop mutated genes.

The genes of coral embryos develop independently from their environment.

Temperature changes resulted in a larger number of developing embryos.

Ɛhia

1

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.

Ɛhia

1

The Himalayan rabbit’s habitat has cold, snowy winters and mild summers. The body is typically covered in white fur except for the nose, feet, tail, and ears, which are covered in black fur.
A scientist shaved an area of white fur on the back of a Himalayan rabbit and placed an ice pack over the shaved area. The shaved area grew black fur.
Which of these best explains why the hair that grew back where the ice pack was placed was black and not white?

The genes for black hair were activated by specific temperatures, causing the protein for black hair to be synthesized.

The white hair mutated to black hair as the rabbit’s body temperature decreased.

The coat color changed from white to black with the age of the rabbit.

White hair only grows during certain times of the year because the gene for white hair is expressed at certain times.

B.C.6D

Ɛhia

1

Insulin is a hormone that is produced in the pancreas. Insulin functions as a key to allow glucose (sugar) from the bloodstream to enter the cells. Glucose provides the body with the energy needed to function properly. Without insulin, glucose in the blood stream will build up in the blood leading to high blood sugar levels. People with diabetes do not produce their own insulin.
What factor is most responsible for the lack of insulin in people with diabetes?

The gene for producing insulin is deactivated in people with diabetes, causing them to not create insulin.

The gene for producing insulin is activated in people with diabetes, causing them to create insulin.

The gene for producing insulin is activated in people with diabetes, causing them to not create insulin.

The gene for producing insulin is deactivated in people with diabetes, causing them to create insulin.

Ɛhia

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.

Ɛhia

1

As unspecialized cells mature, what controls their development into specific cell types?

The rate at which the cell grows.

The genes expressed within the cells.

The nutrients available to the cells.

The age of neighboring cells.

Ɛhia

1

Environmental factors typically activate genes in a cell by causing the cells to -

produce identical daughter cells through mitosis

form haploid gametes cells through meiosis

fuse with another cell to increase the size of its genome

transcribe specific DNA segments to mRNA for translation

Ɛhia

1

Liver cells and neurons are two cells found in the human body with highly specialized functions.
Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

The expression of certain genes are regulated during transcription.

Only liver cells contain the original DNA from embryonic stem cells.

The DNA inside of these cells came from two different parent cells.

Changes in function are the result of random mutations during S phase.

Ɛhia

1

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.
What drives these developmental changes during the frog's life cycle?

Mutations occur during embryological development that result in the loss of a tail.

The cells of the frog spend different times in each phase of the cell cycle.

Changes in temperature drive frogs to transition from water to land.

Chemical signals inside the frog activate different genes at different points in the cycle.

Gene Expression Unit Test Questions (Ash - Biorets)

Gene Expression Unit Test Questions (Ash - Biorets)

Gene expression is -

As unspecialized cells mature, what controls their development into specific cell types?

Environmental factors typically activate genes in a cell by causing the cells to -

Liver cells and neurons are two cells found in the human body with highly specialized functions.
Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.
What drives these developmental changes during the frog's life cycle?

Gene expression is -

As unspecialized cells mature, what controls their development into specific cell types?

Environmental factors typically activate genes in a cell by causing the cells to -

Liver cells and neurons are two cells found in the human body with highly specialized functions.
Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.
What drives these developmental changes during the frog's life cycle?

Gene Expression Unit Test Questions (Ash - Biorets)

Gene Expression Unit Test Questions (Ash - Biorets)

Gene expression is -

As unspecialized cells mature, what controls their development into specific cell types?

Environmental factors typically activate genes in a cell by causing the cells to -

Liver cells and neurons are two cells found in the human body with highly specialized functions. Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.What drives these developmental changes during the frog's life cycle?

Gene expression is -

As unspecialized cells mature, what controls their development into specific cell types?

Environmental factors typically activate genes in a cell by causing the cells to -

Liver cells and neurons are two cells found in the human body with highly specialized functions. Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.What drives these developmental changes during the frog's life cycle?

Liver cells and neurons are two cells found in the human body with highly specialized functions.
Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.
What drives these developmental changes during the frog's life cycle?

Liver cells and neurons are two cells found in the human body with highly specialized functions.
Which is the best explanation for why these cells perform different functions if their nucleus contains the same DNA?

Amphibians such as frogs undergo various developmental and structural changes throughout their life cycle. Many frogs start in the water, but eventually grow legs to walk on the earth.
What drives these developmental changes during the frog's life cycle?