Use the Following Information to Answer the Questions Below

question 92

Multiple Choice

Use the following information to answer the questions below.
A researcher has arrived at a method to prevent gene expression from Drosophila embryonic genes.The following questions assume that he is using this method.
-The researcher measures the concentration of the polypeptides from different regions in the early embryo and finds the following pattern (darker shading = greater concentration) :

Which of the following would be his most logical assumption?

• A)The substance has moved quickly from region 5 to region 1.
• B)Some other material in the embryo is causing accumulation in region 1 due to differential binding.
• C)The cytosol is in constant movement, dispersing the polypeptide.
• D)The substance is produced in region 1 and diffuses toward region 5.
• E)The substance must have entered the embryo from the environment near region 1.

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Definitions:

Cancer Of The Blood Vessels

A rare form of cancer that affects the lining of the blood vessels, also known as angiosarcoma.

Invasive Cervical Cancer

A form of cervical cancer that has spread from the surface of the cervix to tissue deeper in the cervix or to other parts of the body.

Highly Contagious

Refers to diseases or conditions that can be easily and rapidly spread from one individual to another through direct contact or proximity.

Terminal Illness

A disease or condition that is deemed incurable or irreversible and is expected to result in the death of the patient within a relatively short period of time.