The term 'Chromosome Choice' refers to the process of determining the SEX of an organism. The crossword solutions for this term include SEX (3 letters), MALE (4 letters), GENE (4 letters), GENOME (6 letters), MALES (5 letters), and GENES (5 letters). SEX is determined by the presence of certain chromosomes, with males typically having an X and a Y chromosome, and females having two X chromosomes. Genes are the basic units of heredity, and they are located on chromosomes. A genome is the complete set of genetic material in an organism, which includes all of its genes. Chromosome choice is the process of determining the SEX of an organism based on the number and type of chromosomes present.