Meiosis Flashcards
Diploid
Two sets of chromosomes
Haploid
One set of chromosomes
How many body cells do humans have?
46 chromosomes
The process of meiosis produces gametes with __________ as body cells
Half the number of chromosomes (23 from each parent)
Sexual reproduction
Requires 2 parents and increases genetic diversity
Gametes
Specialized cells; sperm from males and eggs from females
Zygote
New diploid cell formed by the process of fertilization
Genetic diversity
Variety in species
Embryo
Develops a form of zygote
Homologous chromosomes
Matching chromosomes
Fertilization
Process in which gametes from two parents combine
Meiosis 1
Starts with a diploid cell and ends with 2 haploid cells
Meiosis 2
Stars with 2 haploid cells and ends with 4 haploid cells
Interphase 1
Same as mitosis
Prophase 1
Chromosomes begins to condense and pair up. Align with their homologous partner so they match up
Prophase 2
Daughter cells only have 1 copy of each homologous chromosome
No synapsis/crossing over
Metaphase 2
Sister chromatids line up across the middle of the cell and is completely random
Anaphase 2
Pulled to the end of the cell
Telophase 2
Cytoplasm is reformed
2 cells in one cytoplasm
Cytokinesis
Separation of the 2 cells resaulting in 4 unique haploid cells
(Gametes)
