The factor that primarily determines how a cell will differentiate is the genetic information encoded in the DNA. While other factors such as the physical location of the cell in the body and environmental influences can play a role, the genetic information provides the fundamental instructions for a cell's development and specialization.
Which factor determines how a cell will differentiate?(1 point)
Responses
The genetic information encoded in the DNA
The genetic information encoded in the DNA
The amount of sunlight the organism is exposed to.
The amount of sunlight the organism is exposed to.
The physical location of the cell in the body
The physical location of the cell in the body
The size of the cell
11 answers
Why do multicellular organisms need to perform mitosis?(1 point)
Responses
To repair damaged tissues and enable growth
To repair damaged tissues and enable growth
To produce gametes for sexual reproduction
To produce gametes for sexual reproduction
To convert food into energy within cells
To convert food into energy within cells
To generate genetic diversity within the population
Responses
To repair damaged tissues and enable growth
To repair damaged tissues and enable growth
To produce gametes for sexual reproduction
To produce gametes for sexual reproduction
To convert food into energy within cells
To convert food into energy within cells
To generate genetic diversity within the population
Multicellular organisms need to perform mitosis to repair damaged tissues and enable growth. Mitosis is the process by which a cell divides to produce two identical daughter cells, which is essential for growth, development, and healing in multicellular organisms.
Which organism performs binary fission?(1 point)
Responses
Humans
Humans
Plants
Plants
Bacteria
Bacteria
Fungi
Responses
Humans
Humans
Plants
Plants
Bacteria
Bacteria
Fungi
The organism that performs binary fission is Bacteria. Binary fission is a method of asexual reproduction in which a single organism divides into two identical offspring, commonly seen in prokaryotes like bacteria.
What is the purpose of checkpoints during the cell cycle?(1 point)
Responses
To speed up the process of cell division
To speed up the process of cell division
To ensure the cell grows to its maximum size
To ensure the cell grows to its maximum size
To stop the cell cycle when the cell is not needed anymore
To stop the cell cycle when the cell is not needed anymore
To repair any damage to the DNA and ensure accurate replication
Responses
To speed up the process of cell division
To speed up the process of cell division
To ensure the cell grows to its maximum size
To ensure the cell grows to its maximum size
To stop the cell cycle when the cell is not needed anymore
To stop the cell cycle when the cell is not needed anymore
To repair any damage to the DNA and ensure accurate replication
The purpose of checkpoints during the cell cycle is to repair any damage to the DNA and ensure accurate replication. Checkpoints monitor the integrity of the cell's genetic material and ensure that the cell is ready to proceed to the next phase of the cycle, which helps prevent errors that could lead to cell malfunction or disease.
Why are the 2 daughter cells genetically the same as the parent cell after mitosis?(1 point)
Responses
Because they are different cell types
Because they are different cell types
Because they undergo meiosis
Because they undergo meiosis
Because they undergo apoptosis
Because they undergo apoptosis
Because they receive identical sets of chromosomes
Responses
Because they are different cell types
Because they are different cell types
Because they undergo meiosis
Because they undergo meiosis
Because they undergo apoptosis
Because they undergo apoptosis
Because they receive identical sets of chromosomes
The reason the 2 daughter cells are genetically the same as the parent cell after mitosis is because they receive identical sets of chromosomes. During mitosis, the chromosomes are replicated and then equally divided between the two daughter cells, ensuring that each daughter cell has the same genetic information as the parent cell.
Which of the following best defines stem cells?(1 point)
Responses
Stem cells are cells that have already differentiated into specific cell types
Stem cells are cells that have already differentiated into specific cell types
Stem cells are cells that can divide to produce two identical daughter cells
Stem cells are cells that can divide to produce two identical daughter cells
Stem cells are cells that are found only in the bone marrow
Stem cells are cells that are found only in the bone marrow
Stem cells are undifferentiated cells that can differentiate into specialized cell types
Responses
Stem cells are cells that have already differentiated into specific cell types
Stem cells are cells that have already differentiated into specific cell types
Stem cells are cells that can divide to produce two identical daughter cells
Stem cells are cells that can divide to produce two identical daughter cells
Stem cells are cells that are found only in the bone marrow
Stem cells are cells that are found only in the bone marrow
Stem cells are undifferentiated cells that can differentiate into specialized cell types
The option that best defines stem cells is stem cells are undifferentiated cells that can differentiate into specialized cell types. Stem cells have the unique ability to develop into various types of cells in the body, making them crucial for growth, development, and tissue repair.