Question

After mitosis, some cells go through the process of differentiation, which makes them more specialized. even though they all have the same dna, they are able to perform these specialized functions because of gene expression, meaning only the "necessary" part of the dna is being used. gene expression is influenced by: (select all that apply)

a. Environmental factors
b. Hormones
c. Cellular signals
d. Random chance
e. All of the above

Answer 1

The correct answer is options a, b, c, and d.

Step-by-step explanation:

Cells with the same DNA can become different types of cells through the expression of different genes in the DNA. This process is known as gene expression. Gene expression is influenced by a number of factors:

1. Environmental factors: Environmental conditions can trigger the expression of certain genes. For example, a plant may express genes for drought resistance in response to a dry environment.
2. Hormones: Hormones can activate or inhibit the expression of specific genes. For instance, estrogen can stimulate the expression of genes involved in female reproductive development.
3. Cellular signals: Signaling molecules within a cell can activate or repress gene expression. For instance, growth factors can trigger the expression of genes involved in cell division and growth.
4. Random chance: Occasionally, gene expression may be influenced by random events, such as mutations or errors in the replication process.