Which of the Following Is NOT a Property Shared by Both

question 13

Multiple Choice

Which of the following is NOT a property shared by both CD4 and CD8?

• A)Binds to nonpolymorphic regions of MHC molecules
• B)Cytoplasmic tail associates with the Src family kinase Lck
• C)Is a member of the Ig superfamily
• D)Functions as a coreceptor for \(\alpha\)\(\beta\) TCRs
• E)Is expressed on the majority of mature blood T cells

---

Definitions:

Epigenetics

The examination of changes in how genes are activated or expressed that are passed down between generations, which do not result from alterations in the DNA sequence itself.

Gene Expression

The biological process by which the information in a gene is used to synthesize functional gene products, such as proteins, influencing an organism's structure and function.

Environmental Influences

Environmental influences encompass all the external physical and social conditions affecting the growth, development, and behavior of individuals.

DNA Change

An alteration in the genetic material of an organism, which can occur naturally through mutations or be induced by external factors.