Question

When a stem cell differentiates and changes in size and shape, specific genes are being(1 point)
Responses

copied.
copied.

expressed.
expressed.

transcribed.
transcribed.

spliced.

Which of the following describes when the cell leaves the cell cycle and no longer divides?(1 point)
Responses

mitosis
mitosis

interphase
interphase

differentiation
differentiation

senescence

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

totipotent, pluripotent, multipotent
totipotent, pluripotent, multipotent

pluripotent, totipotent, multipotent
pluripotent, totipotent, multipotent

totipotent, multipotent, pluripotent
totipotent, multipotent, pluripotent

pluripotent, multipotent, totipotent

Gene expression is determined by several factors, including(1 point)
Responses

senescence
senescence

the brain
the brain

chemicals in the body
chemicals in the body

protein synthesis

Question
Which of the following would be an environmental factor that could affect gene expression? (1 point)
Responses

number of organisms in the group
number of organisms in the group

temperature of the water
temperature of the water

organ of the organism
organ of the organism

sex of the organism

Answer 1

Here are the answers based on your questions:

1. When a stem cell differentiates and changes in size and shape, specific genes are being **expressed**.

2. Which of the following describes when the cell leaves the cell cycle and no longer divides? This would be **senescence**.

3. The correct order of the three types of stem cells, from widest range of differentiation to least able to differentiate (specific), is **totipotent, pluripotent, multipotent**.

4. Gene expression is determined by several factors, including **chemicals in the body**.

5. An environmental factor that could affect gene expression would be **temperature of the water**.

Let me know if you need any further information!