A Is a Column (Or Columns) That Uniquely Identifies Each

question 29

Multiple Choice

A is a column (or columns) that uniquely identifies each row of data in a database.

• A) selector
• B) main key
• C) identifier
• D) primary key

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Definitions:

Y Chromosome

The sex chromosome typically associated with male characteristics in humans and most other mammals.

X Chromosome

One of the two sex chromosomes, X and Y, that determine biological sex, with females typically having two X chromosomes.

Menarche

The onset of menstruation in female individuals, marking a key event in female puberty and reproductive maturity.

Gender Identity

An individual's personal sense of their own gender, which may or may not correspond to their sex assigned at birth.