What Is the MOST Logical Explanation of the Observation That

question 125

Multiple Choice

What is the MOST logical explanation of the observation that so many organisms have a Pax6 gene?

• A)All organisms must be able to see.
• B)All organisms want to see.
• C)All organisms with a Pax6 gene have a common ancestor.
• D)All organisms evolved a Pax6 gene.

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Definitions:

Menarche

The occurrence of the first menstrual period in a female, a milestone in pubertal development usually happening between the ages of 10 and 15.

Climacteric

A phase in adult life, typically occurring between the ages of 45 and 55, marked by reduced reproductive capacity and, in women, menopause.

Antigens

Substances that are recognized by the immune system and provoke an immune response, often seen in pathogens like viruses and bacteria.

Antibodies

Proteins made by the immune system to identify and neutralize foreign objects like bacteria and viruses.