Science Assessment ~ Topics ~ Reproduction, Genes, and Heredity ~ 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 project (Original Project) and key idea ()
Item ID Number	Item Description	How Often the Misconception was Chosen	Select This Item for My Item Bank
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%