10.4 Flashcards
the process by which the number of chromosomes is reduced to half as sex cells form
Meiosis
Human body cells contains _ Chromosomes that form 23 pairs
46
_ into 2 cells
A cell divides
Each cell _ again priming 4 cells
Divides
Chromosomes only duplicate _
Before first cell division
4 sex cells are produced with _
Half the number of chromosomes of the parent cell
Each sex cell has only _
1 chromosome from an original pair
Who studied the cells of grasshoppers
Walter sutton
Chromosomes are made up of _
Genes which control traits
Each body cell contains _ genes
20,000 - 25,000
Walter sutton wanted to know?
How sperm and egg cells form
What did sutton hypothesize
That chromosomes are the key to how offspring have traits similar to their parents
Sex cell have exactly _the # of chromosomes found in body cells
Half
How do genes pass from parents to offspring
On chromosomes
