The correct response is Brain and muscle cells. While skin and hair cells, sperm and egg cells, and blood and organ cells can undergo mitosis, brain and muscle cells are generally considered to be post-mitotic or have a very limited capacity to divide after differentiation.
What type of cells DO NOT perform mitosis?(1 point)
Responses
Skin and hair cells
Skin and hair cells
Brain and muscle cells
Brain and muscle cells
Sperm and egg cells
Sperm and egg cells
Blood and organ cells
11 answers
Which of the following best defines gene expression?(1 point)
Responses
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 permanent alteration of the DNA sequence within a gene
The permanent alteration of the DNA sequence within a gene
The duplication of the entire genome during cell division
Responses
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 permanent alteration of the DNA sequence within a gene
The permanent alteration of the DNA sequence within a gene
The duplication of the entire genome during cell division
The response that best defines gene expression is The process by which genetic information is read and becomes differentiated. Gene expression involves the processes of transcription and translation, where the information in DNA is used to synthesize proteins that perform various functions in the cell.
Which of the following is the best example of cell differentiation?(1 point)
Responses
A bacterial cell dividing into two identical daughter cells
A bacterial cell dividing into two identical daughter cells
A virus injecting its DNA into a host cell
A virus injecting its DNA into a host cell
A stem cell developing into a muscle cell
A stem cell developing into a muscle cell
A plant absorbing water through its roots
Responses
A bacterial cell dividing into two identical daughter cells
A bacterial cell dividing into two identical daughter cells
A virus injecting its DNA into a host cell
A virus injecting its DNA into a host cell
A stem cell developing into a muscle cell
A stem cell developing into a muscle cell
A plant absorbing water through its roots
The best example of cell differentiation from the options provided is A stem cell developing into a muscle cell. Cell differentiation refers to the process by which a general cell, such as a stem cell, develops into a more specialized cell type, such as a muscle cell, with specific functions and characteristics.
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
G1, S, G2, M
G1, S, G2, M
S, G1, G2, M
Responses
G2, G2, S, M
G2, G2, S, M
G2, G1, S, M
G2, G1, S, M
G1, S, G2, M
G1, S, G2, M
S, G1, G2, M
The correct order of the steps of the cell cycle is G1, S, G2, M.
- G1 (Gap 1): The cell grows and performs normal functions.
- S (Synthesis): DNA is replicated.
- G2 (Gap 2): The cell continues to grow and prepares for mitosis.
- M (Mitosis): The cell divides into two daughter cells.
Which of the following is the best explanation of telophase during mitosis?(1 point)
Responses
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 cytoplasm divides, resulting in two separate daughter cells.
The cytoplasm divides, resulting in two separate daughter cells.
The cell grows and duplicates its DNA in preparation for division.
The cell grows and duplicates its DNA in preparation for division.
The chromosomes arrive at opposite poles of the cell, and new nuclear membranes form around each set of chromosomes.
Responses
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 cytoplasm divides, resulting in two separate daughter cells.
The cytoplasm divides, resulting in two separate daughter cells.
The cell grows and duplicates its DNA in preparation for division.
The cell grows and duplicates its DNA in preparation for division.
The chromosomes arrive at opposite poles of the cell, and new nuclear membranes form around each set of chromosomes.
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 chromatids reach the opposite ends of the cell, and new nuclear membranes start to form around each set of chromosomes, effectively setting the stage for the final separation of the two daughter cells through cytokinesis.
During mitosis, what happens to the parent cell?(1 point)
Responses
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.
The parent cell fuses with another cell.
The parent cell's DNA is replicated twice.
The parent cell's DNA is replicated twice.
The parent cell's nucleus disappears permanently.
Responses
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.
The parent cell fuses with another cell.
The parent cell's DNA is replicated twice.
The parent cell's DNA is replicated twice.
The parent cell's nucleus disappears permanently.
The correct response is The parent cell divides to form two genetically identical daughter cells.
During mitosis, the parent cell undergoes a process of division that results in two daughter cells, each with the same genetic material as the parent cell.
1 answer