9.3 Flashcards
Haploid cells
n, single chromosome, forms gametes. by meiosis
Deploid cells
2n, two chromosomes, form somatic cells, by mitosis
by meosis
haploid
by mitosis
deploid
games (eggs and sperms) are..
heploid cells
what happens when 2 haploid cells fuse together during fetlization
a deploid zygote is formed
Zygote
is the first cell of a new organisism
Mitosos
1 cell division that produces 2 genetically identical cells (diploid)
What does mitosis start and end with
Starts with: 2n
Ends with: 2n
Both are deploid cells
What is the role for mitosis
Growth and repair
identical cells
Asexual reproduction
Meosis
2 cell divides and form 4 genetically different cells (haploid)
What dose meiosis start and end with
Starts with: 2n (germ cells)
Ends with: 1n (gamet cells)
What is the role for meosis
Sexual reproduction
Form games cells
Genetic varation
Germ cells are diploid cells that…
divide by meiosis to form haploid gamets
zygote divide by …. to build and organism with trillions of … cels
mitosis … identical
Haploid
23 single chromosomes
Deploid
46 chromosomes, each set from 2 copies and each from one parent
