What Structural Feature of Lymphatic Vessels Is Responsible to Forward

question 31

Multiple Choice

What structural feature of lymphatic vessels is responsible to forward movement of lymph?

• A)over-lapping endothelial cells
• B)valves
• C)no basement membrane
• D)thin walls

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Definitions:

Active Repressor

A molecular form of a repressor protein that can bind to specific regions of DNA and inhibit gene transcription.

Transcriptional Activity

The process of copying a segment of DNA into RNA by the enzyme RNA polymerase, crucial in gene expression.

Noncoding Region

Sections of DNA that do not code for proteins but may have regulatory roles in gene expression, chromatin structure, and genome organization.

IGF2 Gene

A gene that encodes the insulin-like growth factor 2, playing a crucial role in growth and development, especially fetal growth.