Answer:
There are no options to this question, the options are:
A) Dominance
B) Recessive inheritance
C) Incomplete dominance
D) Sex-linked inheritance
The answer is D
Step-by-step explanation:
Sex-linked inheritance is a kind of non-mendelian inheritance in which traits are transferred via genes on sex chromosomes. There are two sex chromosomes in humans namely: X and Y chromosomes. These traits that are inherited this way are called Sex-linked traits.
Since the Y chromosome is genetically inert, it does not contain any trait. Hence, traits can only be transferred on the X chromosome. Therefore, once a male or female receives the affected X chromosome, the traits will be expressed irrespective of whether it is dominant or recessive. Hence, the main way a recessive allele would be fully expressed even when only one copy is present would be via SEX-LINKED INHERITANCE.