Chapter 3 Flashcards
What are the stages of mitosis?
Prophase:
Metaphase
Anaphase
Telophase
What are the stages of meiosis?
Prophase 1, 2
Metaphase 1, 2
Anaphase 1, 2
Telophase 1, 2
What is a karyotype
A picture of a homologous chromosome taken during metaphase
Define haploid
Cells with half the number of chromosomes
Define diploid
Cells with complete set of chromosomes
Define monosomy
When a diploid cell contains only one chromosome (in the last stages of meiosis)
Define trisomy
When a diploid cell contains three chromosomes
What is a non-disjunction disorder
Error in the meisosis proccess
What is a gamete
Cells that have half the number of chromosomes
What is crossing over
Exchange of genetic material in prophase 1
What is a zygote
Cells that have the full number of chromosomes (results from two gametes)
How are karyotypes organized
Organized from largest to smallest.
What type of cell is involved with mitosis? Meiosis?
Mitosis: regeneration cells
Meiosis: Reproductive cells
What is Oogenesis
Ovum creation (produces 1 large egg and 3 small polar bodies) polar bodies die-off
What is spermatogenesis
Sperm creation (produces 4 equally sized sperms differing in genetic information). Highly motile
