Which of the following best defines gene expression?(1 point)

Question

Responses

The permanent alteration of the DNA sequence within a gene
The permanent alteration of the DNA sequence within a gene

The process by which genetic information is read and becomes differentiated
The process by which genetic information is read and becomes differentiated

The movement of genetic material between different cells or organisms
The movement of genetic material between different cells or organisms

The duplication of the entire genome during cell division

Answer 1

The best definition of gene expression from the given options is:

The process by which genetic information is read and becomes differentiated.

Gene expression refers to how information from a gene is used to synthesize a functional gene product, typically proteins, which then influence the characteristics of the organism.

Answer 2

Which of the following is the best example of cell differentiation?(1 point)
Responses

A virus injecting its DNA into a host cell
A virus injecting its DNA into a host cell

A bacterial cell dividing into two identical daughter cells
A bacterial cell dividing into two identical daughter cells

A plant absorbing water through its roots
A plant absorbing water through its roots

A stem cell developing into a muscle cell

Answer 3

The best example of cell differentiation from the given options is:

A stem cell developing into a muscle cell.

Cell differentiation is the process by which a less specialized cell becomes a more specialized cell type, such as a stem cell differentiating into a muscle cell.

Answer 4

Which of the following is the correct order of the steps of the cell cycle?(1 point)
Responses

G2, G2, S, M
G2, G2, S, M

G2, G1, S, M
G2, G1, S, M

S, G1, G2, M
S, G1, G2, M

G1, S, G2, M

Answer 5

The correct order of the steps of the cell cycle is:

G1, S, G2, M.

In this order, G1 (Gap 1) is the first phase, followed by S (Synthesis), then G2 (Gap 2), and finally M (Mitosis).

Answer 6

Which of the following is the best explanation of telophase during mitosis?(1 point)
Responses

The chromosomes arrive at opposite poles of the cell, and new nuclear membranes form around each set of chromosomes.
The chromosomes arrive at opposite poles of the cell, and new nuclear membranes form around each set of chromosomes.

The cytoplasm divides, resulting in two separate daughter cells.
The cytoplasm divides, resulting in two separate daughter cells.

Chromosomes line up in the middle of the cell, and spindle fibers attach to them.
Chromosomes line up in the middle of the cell, and spindle fibers attach to them.

The cell grows and duplicates its DNA in preparation for division.

Answer 7

The best explanation of telophase during mitosis is:

The chromosomes arrive at opposite poles of the cell, and new nuclear membranes form around each set of chromosomes.

During telophase, the separated chromosomes reach the poles of the cell, and the nuclear envelope begins to reform around each set of chromosomes, marking the near end of mitosis.

Answer 8

During mitosis, what happens to the parent cell?(1 point)
Responses

The parent cell's DNA is replicated twice.
The parent cell's DNA is replicated twice.

The parent cell's nucleus disappears permanently.
The parent cell's nucleus disappears permanently.

The parent cell divides to form two genetically identical daughter cells.
The parent cell divides to form two genetically identical daughter cells.

The parent cell fuses with another cell.

Answer 9

The correct response regarding what happens to the parent cell during mitosis is:

The parent cell divides to form two genetically identical daughter cells.

During mitosis, the parent cell undergoes division, resulting in two daughter cells that are genetically identical to the parent cell.

Answer 10

Which of the following scenarios is mitosis in action?(1 point)
Responses

A bacterium dividing into two daughter cells
A bacterium dividing into two daughter cells

A sperm cell fusing with an egg cell
A sperm cell fusing with an egg cell

A liver cell preparing to produce enzymes
A liver cell preparing to produce enzymes

A skin cell repairing itself after a cut

Answer 11

The scenario that best illustrates mitosis in action is:

A skin cell repairing itself after a cut.

During this process, skin cells undergo mitosis to divide and replace the damaged or lost cells, leading to healing. The other options either describe processes not involving mitosis or involve different mechanisms of cell division, such as binary fission in bacteria or fertilization in the case of sperm and egg cells.