Crossword puzzle clue "boarding hr determinants"

DAYGIRL, a girl who attends a boarding-school daily but returns home in the evening

ALLELE, any one of the two or more possible forms of a gene, also ALLEL, ALLELOMORPH

AVERAGE, to calculate the arithmetical mean value of

AXLE, a shaft upon which a wheel revolves

CAUSE, to bring about

EXAM, an examination

GENE, a hereditary unit