The functional unit of the kidney is the

a: nephron
b: ureter
c: urethra
d: bladder

The correct answer would be nephron.

Nephron makes the functional and structural unit of the kidney.

Each kidney comprised of millions of nephrons which help in the formation of urine.

Each nephron consists of two parts renal corpuscle and renal tubule. Renal corpuscle in turn consists of glomerulus and Bowman's capsule.

It produce urine by four main processes:

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her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.