Biology / Unit 4 Bio 0833 short lesson, about 20 seconds
Diploid and Haploid
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The idea
A diploid cell holds two matched sets of chromosomes, one from each parent; a haploid cell holds a single set.
In practice
A human somatic cell is diploid with 46 chromosomes, while a human sperm or egg is haploid with 23.
Where people slip
A haploid cell is not merely a diploid cell missing chromosomes — it holds one complete set, not half of a damaged one.
Your place on the trail
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