A Husband and Wife Are in the Process of Getting

question 11

Multiple Choice

A husband and wife are in the process of getting a divorce.During child-support hearings,the husband states that he should not pay child support as he feels that the child was actually fathered by one of the woman's various lovers.DNA restriction analysis was performed,with the results illustrated in the diagram below.

Figure 18.3
The DNA of the husband in this case can be found in lane 3, whereas that of the suspected father is in lane 4. Based on this information,

• A)the husband is definitely the child's father.
• B)the husband is definitely not the child's father.
• C)either man could be the father, and more tests are needed to discern paternity.
• D)neither man in question is the child's biological father.

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Definitions:

Mycorrhizal Fungus

Fungi that form beneficial symbiotic relationships with the roots of plants, improving water and nutrient absorption for the plant and receiving carbohydrates in return.

Plant Root

The part of a plant that typically lies below the surface of the soil and functions in anchorage, water and nutrient absorption, and sometimes in storage.

Club Fungi

A group of fungi characterized by the production of spores on club-shaped structures called basidia.

Ascomycota

Ascomycota, also known as sac fungi, is a division of fungi that store their spores in a sac-like structure called an ascus.