The question is incomplete, the complete question is;
1. Mary and her siblings share similar hair color. Which of these cell components are most involved in determining the hair color of each sibling?
Gene, Chromosome, Nucleus
Cytoplasm, Chloroplasts,Genes
Vacuoles, Nucleus, Chromosomes
Chromosomes, Chloroplasts, Vacuoles
Answer:
Gene, Chromosome, Nucleus
Step-by-step explanation:
Gene is defined in biology as "a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring" (Oxford Dictionary).
The gene is located in the chromosomes in the nucleus of cells. The sum total of the genes that an organism inherits from its parents is called the organisms' genotype and determines certain features of the organism.
The hair colour of Mary and each of her siblings depends on the genes they received from their parents.