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Published byMillicent May Lawrence Modified over 8 years ago
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Different life cycles use different modes of reproduction. Both Binary Fission and Mitosis Produce Genetically Identical Cells. Prokaryotes divide by binary fission, eukaryotes by mitosis. Some chromosomes are circular while others are linear.
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ASEXUAL REPRODUCTION-involves DNA from only one parent; offspring is an exact copy (CLONE) of the parent. SEXUAL REPRODUCTION-involves DNA from 2 parents; offspring is a genetic mix of both and is different from both parents and other offspring.
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CELL DIVISION-the process by which a cell reproduces (makes offspring cells).
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Prokaryotes reproduce by dividing asexually. Binary Fission 3 STAGES: 1. Circular DNA copies itself 2 identical chromosomes are attached to the inner cell membrane. 2. Cell grows to 2X its normal size. 3. Cell wall forms between the 2 chromosomes and the cell splits into 2 new cells.
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Eukaryotic cells (and single-celled organisms) reproduce asexually as well via mitosis.
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Multicellular organisms result from asexual divisions of zygote (single cell made of a combined sperm and egg). These cells not only grow larger before they divide (reproduce), but eventually will become specialized for a specific set of tasks (DIFFERENTIATION).
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