BIOLOGY 220 LECTURE #24 -PLANTS- ASEXUAL REPRODUCTION-ALTERATION OF GENERATIONS-AND PLANT DEVELOPMEN

BIOLOGY 220 LECTURE #24 -PLANTS- ASEXUAL REPRODUCTION-ALTERATION OF GENERATIONS-AND PLANT DEVELOPMEN

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BIOLOGY 220 LECTURE #24 – PLANTS: ASEXUAL REPRODUCTION, ALTERNATION OF GENERATIONS, AND PLANT DEVELOPMENT PLANT REPRODUCTION – 2 Asexual reproduction Faithful maintenance of genetic makeup – every individual in the population has the same genetic makeup o This means that all the offspring of an individual inherit any adaptations that the individual might have to a particular environment If a plant clonally reproduces, all the offspring will inherit any adaptations from the original plant. o You want to provision offspring with some resource so that offspring aren’t stealing your resources right away Decrease competition Tasty vegetables
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Unformatted text preview: ASEXUAL REPRODUCTION – 3 • Bulbs: o This is an underground shoot that’s completely surrounded by tight fleshy leaves. o The rings on an onion are actually cross-sections of underground leaves. o Could wait underground until conditions become favorable for growth and reproduction ASEXUAL REPRODUCTION – 4 • Rhizomes: o Horizontal underground shoots o Dry hard, tightly wrapped leaves around the shoot. o Irises and ginger reproduce using rhizomes o Plant a node ASEXUAL REPRODUCTION – 5 • Tubers are swollen, fleshy underground stems • The “eyes” of a potato are buds for side-branches • 8:20...
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This note was uploaded on 04/15/2008 for the course BIO 220 taught by Professor Cassiemajetic during the Fall '07 term at Allegheny.

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BIOLOGY 220 LECTURE #24 -PLANTS- ASEXUAL REPRODUCTION-ALTERATION OF GENERATIONS-AND PLANT DEVELOPMEN

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