Question

Which one of the following symbols represents mating between relatives in human pedigree analysis?

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is C

In human pedigree analysis, different symbols are used to depict various relationships and genetic attributes. When analyzing a pedigree chart, recognizing these symbols is crucial. Here we focus on the symbol that indicates a mating (or marriage) between relatives, also known as consanguineous mating.

In a pedigree chart, consanguineous matings are represented by a double horizontal line connecting the male and female symbols. This differs from a general mating, which is depicted by a single line.

Let's examine the provided symbols: 

1. A single line between a male and a female indicates a regular mating.
2. A double line between a male and a female symbolizes mating between relatives, or consanguinity.
3. The other symbols here should represent different relationships or genetic conditions.

The correct symbol that represents mating between relatives in human pedigree analysis from the options is:

This symbol clearly shows the double line, indicating a consanguineous relationship. Recognizing such symbols is essential in understanding and interpreting pedigree charts accurately.