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Unit 4 Lessons 1-3

Mitosis, Meiosis, and Asexual and Sexual Reproduction

TermDefinition
Necessary for the survival of every species. Reproduction
What is an advantage of asexual reproduction? The organism can quickly increase the number in its population.
What stage of cell division is part of asexual reproduction? mitosis
What is the division of the nucleus into two identical equal nuclei? mitosis
What is an advantage of sexual reproduction? Creates variety in the offspring's inherited traits.
Why is variety in an offspring's inherited traits an advantage? Increases the chances of survival if there are changes in the environmental conditions.
Produces offspring genetically identical to each other and only requires one parent. Asexual Reproduction
Four examples of asexual reproduction binary fission, budding, spore formation, and vegetative propagation
How many parents are involved in asexual reproduction? one parent
How many parents are involved in sexual reproduction? two parents
In asexual reproduction (vegetative propagation), a new plant develops from non-reproductive organs such as a root, stem, or leaf.
Involves the union of egg and sperm from two parents sexual reproduction
offspring are not genetically identical to either parent in sexual reproduction
Union of egg and sperm in sexual reproduction fertilization
cell formed as a result of fertilization and has a full set of chromosomes. zygote
Gametes that have half the number of chromosomes as a body cell are formed through meiosis
What plant produces offspring that are genetically identical to parents? strawberry plants
What is the difference between body cells and gametes (sex cells)? Body cells are diploid and sex cells are haploid.
body cells are diploid
sex cells are haploid
What process produces sex cells? meiosis
Meiosis is related to what type of reproduction? sexual reproduction
What cells join together to form a new organism during sexual reproduction? sex cells (gametes)
What is cell division that results in 4 haploid cells? (gametes) Meiosis
What is the cell division that results in 2 diploid cells? Mitosis
How do multi-cellular organisms replace damaged body cells? Mitosis
Order of cell division in the cell cycle interphase, mitosis, cytokinesis
What has to happen before a cell divides? The DNA must be copied.
The cell cycle ends with cytokinesis
After cytokinesis, each new cell begins with ? interphase
Created by: ssdunham
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