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26 Cards in this Set
- Front
- Back
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Meiosis
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2N (Diploid) - N (Haploid)
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Prophase I
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Chromosomes condense
Nuclear envelope disappears Spindle forms |
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Metaphase I
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Tetrads align at equator
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Anaphase I
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Tetrads separate and are drawn to opposite poles
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Telophase I
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Original cell divides
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Prophase II
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Chromosomes condense
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Metaphase II
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Line up on equator
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Anaphase II
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Chromatids seperate and are pulled to opposite poles
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Telophase II
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Cells divide
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G1
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RNA and functional protein synthesis
Normal metab. Duplicate organelles |
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S
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DNA replication
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G2
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Structural protein synthesis
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Mitosis
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2N - 2N
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Acoelomates
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W/out a coelom. There is no cavity between the body wall and organs
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Pseudocoelomates
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False coelom. The blastocoel remains and forms a body cavity.
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Coelomates
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Have a true coelom which is a body cavity lined with mesodermal tissues.
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Schizocoely
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The coelom develops from a split in the mesoderm. This occurs in protostomes
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Enterocoely
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The coelom develops from the archenteron (embryonic gut). This occurs in dueterostomes.
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Triploblastic
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All three germ layers are developed in the blastula
(ectoderm, endoderm, mesoderm) |
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Dipolbastic
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Only two germ layers are developed in the blastula (ectoderm and endoderm)
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Spiral Cleavage
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Embryonic cleavage in which cleavage planes are diagonal to the polar axis.
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Radial Cleavage
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Embryonic development in which early cleavage planes are symmetrical to the polar axis.
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Monoecious
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Having both male and female parts
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Dioecious
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Having either males OR female parts
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Antiparallel
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The strands line up in a 5-3 form connected to a 3-5 form. The 3-5 is upside down in comparison to the 5-3
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Complimentary
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The nitrogenous base on one strand must compliment the nitrogenous base on the other
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