and answers already passed
2025/2026
what are the two types of cell division - correct answer ✔asexual and sexual reproduction
cell division may be ______ (size change from mother to daughter) or ________ (identical daughter
cells) - correct answer ✔asymmetrical
symmetrical
asexual reproduction - correct answer ✔offspring are genetically identical to the parent
most prokaryotes reproduce by _______ __________ - correct answer ✔binary fission
single-celled eukaryotes reproduce asexually through ______ - correct answer ✔mitosis
diploid - correct answer ✔2 paired sets of chromosomes
homologous pairs - correct answer ✔One homolog came from the female parent and one from the
male parent
haploid - correct answer ✔gametes, only a single set of chromosomes
zygote - correct answer ✔2 haploid gametes fuse to form a diploid zygote (fertilization)
Zygotes are haploid or diploid? - correct answer ✔diploid
,Gametes are haploid or diploid? - correct answer ✔haploid
If the diploid chromosome number is 16, the chromosome number of each gamete will be - correct
answer ✔8
haplontic - correct answer ✔the mature organism is haploid and the zygote is the only diploid stage
- ex. fungus
- diploid zygote immediately undergoes meiosis and most of life cycle is haploid
diplontic - correct answer ✔the organism is diploid and the gametes are the only haploid stage
- ex. humans
- haploid gametes immediately undergo fertilization and most of life cycle is diploid
haplo-diplontic - correct answer ✔organism spends time in both haploid and diploid stages
why do cells need to divide? - correct answer ✔- repair damaged tissues
- replace damaged worn out cells
- immunity
- growth,
- reproduction
- keep surface area to volume ratio large
all cell division requires: - correct answer ✔- cell division signals
- DNA replication
- DNA segregation
, - cytokinesis
PROKARYOTES: cell division signals - correct answer ✔external factors (food is plentiful) or internal
signals (DNA is damaged)
PROKARYOTES: DNA replication - correct answer ✔ori -> ter site on a single, circular chromosome
PROKARYOTES: DNA segregation - correct answer ✔ori regions move to opposite sides of cell
- 2 circular DNA chromosomes result
PROKARYOTES: cytokinesis - correct answer ✔pinching of cell membrane...2 cells results
EUKARYOTES: cell division signals - correct answer ✔internal (animal reproduction & development &
immunology), cyclin and CDK
EUKARYOTES: DNA replication - correct answer ✔numerous origins of replication, occurs in specified
part of cell cycle
EUKARYOTES: DNA segregation - correct answer ✔one copy of each chromosome in the parental cell
must end up in the 2 new cells...chromosomes condense and a spindle separates the 2
EUKARYOTES: cytokinesis - correct answer ✔nuclear envelope reforms and the two cells split
G1 - correct answer ✔Cell growth and normal functions
- organelles replicate and cell volume doubles
*most eukaryotes are found here*