When a stem cell differentiates and changes in size and shape, specific genes are being expressed.
When a stem cell differentiates and changes in size and shape, specific genes are being(1 point)
Responses
copied.
copied.
spliced.
spliced.
transcribed.
transcribed.
expressed.
expressed.
Skip to navigation
9 answers
Which of the following describes when the cell leaves the cell cycle and no longer divides?(1 point)
Responses
mitosis
mitosis
senescence
senescence
differentiation
differentiation
interphase
interphase
Skip to navigation
Responses
mitosis
mitosis
senescence
senescence
differentiation
differentiation
interphase
interphase
Skip to navigation
The correct answer is senescence. This term describes when a cell leaves the cell cycle and no longer divides.
Consider the three different types of stem cells. Each one’s ability to differentiate into new cells is slightly different. One type can differentiate into any cell, while another can only become specific cells. Select the answer that places the three types in the correct order, from widest range of differentiation to least able to differentiate (specific).(1 point)
Responses
pluripotent, multipotent, totipotent
pluripotent, multipotent, totipotent
totipotent, pluripotent, multipotent
totipotent, pluripotent, multipotent
pluripotent, totipotent, multipotent
pluripotent, totipotent, multipotent
totipotent, multipotent, pluripotent
totipotent, multipotent, pluripotent
Skip to navigation
Responses
pluripotent, multipotent, totipotent
pluripotent, multipotent, totipotent
totipotent, pluripotent, multipotent
totipotent, pluripotent, multipotent
pluripotent, totipotent, multipotent
pluripotent, totipotent, multipotent
totipotent, multipotent, pluripotent
totipotent, multipotent, pluripotent
Skip to navigation
The correct order from widest range of differentiation to least able to differentiate (specific) is totipotent, pluripotent, multipotent.
- Totipotent stem cells can differentiate into any cell type, including the extraembryonic tissues.
- Pluripotent stem cells can differentiate into nearly any cell type but not extraembryonic tissues.
- Multipotent stem cells can only differentiate into a limited range of cells, usually within a specific tissue or organ type.
Gene expression is determined by several factors, including(1 point)
Responses
the brain
the brain
protein synthesis
protein synthesis
senescence
senescence
chemicals in the body
chemicals in the body
Skip to navigation
Responses
the brain
the brain
protein synthesis
protein synthesis
senescence
senescence
chemicals in the body
chemicals in the body
Skip to navigation
The correct response is chemicals in the body. Gene expression can be influenced by various biochemical signals and environmental factors, including hormones, nutrients, and other chemicals present in the body.
Which of the following would be an environmental factor that could affect gene expression? (1 point)
Responses
sex of the organism
sex of the organism
number of organisms in the group
number of organisms in the group
organ of the organism
organ of the organism
temperature of the water
Responses
sex of the organism
sex of the organism
number of organisms in the group
number of organisms in the group
organ of the organism
organ of the organism
temperature of the water
The correct response is temperature of the water. Environmental factors, such as temperature, can affect gene expression by influencing the biological processes in an organism.
1 answer