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Unit 4 Lessons 1-3
Mitosis, Meiosis, and Asexual and Sexual Reproduction
Term | Definition |
---|---|
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 |