Definitions

1. adjective

Having only one copy of a particular gene or chromosome, typically due to being a male with an X-linked recessive gene.

“The geneticist studied the hemizygous condition in the male patient to understand the root cause of his disease.”

2. noun

A person or organism that is hemizygous.

“The researcher analyzed the data from hemizygous individuals to determine the frequency of the condition in the population.”