Misconception RHM120:

A fertilized sex cell has the same number of chromosomes as an unfertilized sex cell (AAAS Project 2061, n.d.).

Items that test for misconception RHM120 in this key idea ()
Item ID
Number

Item Description

How Often the Misconception was Chosen

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RH054001

If the sex cells of a mouse contain 20 chromosomes, then the fertilized egg of a mouse must contain 40 chromosomes.

23%

RH006003

If the sex cells in mice contain 20 chromosomes, then the fertilized egg cell of a mouse contains 40 chromosomes.

20%