Question

1. wolf - hirschhorn syndrome affects the faces of the individuals who are suffering from it. the short arm of their chromosome 4 is missing a piece. what kind of chromosomal mutation is this? duplication deletion translocation inversion

Explanation:

Deletion is a chromosomal mutation where a segment of a chromosome is lost. Since the short - arm of chromosome 4 is missing a piece in Wolf - Hirschhorn syndrome, this is a deletion mutation. Duplication involves an extra copy of a segment, translocation is the movement of a segment to a non - homologous chromosome, and inversion is the reversal of a segment within a chromosome.

Answer:

B. deletion