Question 1
Match the correct pairs/definitions:
A long, thread-like structure composed of twisted parallel strands of DNA.
Double-stranded molecule that encodes genetic instructions.
A unit of DNA on a chromosome.
Chromosomes
[Choose ]
[Choose ]
Chromosomes, designated as X or Y, that determine biological sex.
Sex Chromosomes
The genetic makeup of an individual.
The observable traits or characteristics of an organism.
DNA
[Choose ]
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