Cell Dvision And Asexual Reproduction Flashcards
Cell is growing, duplicating organelles, and making proteins
G1
DNA is replicated
S
Sell continues to grow and produce protein
G2
A cycle of growth, development, and division
Cell cycle
Why is the cell cycle important?
Important for growth, repair, replacement, and reproduction in unicellular organisms
What moves the chromatids during mitosis?
Spindle fibers
Where are spindle fibers produced?
Produced by the centrioles
If a dog cell has 78 chromosomes, how many chromosomes will be in each daughter cell after mitosis
78
List in order the phases of mitosis
Prophase, metaphase, anaphase, telophase
PMAT
DNA coils and condenses, nuclear membrane breaks down, spindle, fibers form
Prophase
Chromosomes line up in the center/equator of the cell
Metaphase
Sister chromatids, separate, cell lengthens
Anaphase
Nuclear membrane reappears, spindle fibers break down, two new nuclei appear
Telophase
How many daughter cells are created from mitosis?
Two
How does the DNA compared to the parent cells in mitosis?
They are identical to the parent cell
What are the three parts of the cell cycle?
Interphase, mitosis, cytokinesis
IMC
Period of growth and replication and preparing for mitosis
Interphase
The process, when the nucleus and its contents divide
Mitosis
The cytoplasm divides
Cytokinesis
The nuclear membrane dissolves in what phase?
Prophase
The nuclear membrane repairs in what phase?
Telophase
What structure holds the sister chromatids together?
Centromere
What phase of the cell cycle do the chromosomes replicate?
Interphase
What divides in mitosis?
The nucleus and its contents divide
What divides in cytokinesis?
The cytoplasm divides
What are the seven different types of asexual reproduction?
Budding, binary fission, spore formation, regeneration, cloning, vegetative reproduction, parthenogenesis
BBSRCVP
Involves only one parent, offspring, genetically identical to parent, involves regular body cells, it’s quick
Asexual reproduction
Involves two parents, offspring genetic mix of both parents, involves specialized sex cells, it’s slow
Sexual reproduction
What type of asexual reproduction do bacteria used to reproduce?
Binary fission
What are two advantages to asexual reproduction?
Does not require special cells, or a lot of energy, can produce offspring quickly
What is one disadvantage of asexual reproduction?
Limited ability to adapt
Parent organism produces offspring without meiosis or fertilization
Asexual reproduction
Explain why cloning might be beneficial to save endangered animals?
?
Parent produces a bud, but gets detached and develops into offspring, which is identical to parent
Budding
Performed in a lab, scientists and farmers use it to make copies of organisms or cells with desirable traits
Cloning
Compare budding and cloning
?
What organisms use regeneration?
Sea stars, sea urchins, planarians
Honeybees, and some sharks can sometimes produce offspring with unfertilized eggs, what is the name of this type of reproduction?
Parthenogenesis
