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23 Cards in this Set
- Front
- Back
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How do you record cell growth that is too dense to distinguish?
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LAWN
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How did we illuminate the colonies?
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With a UV light
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What did we place the glowing colonies in?
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1st test tube had ampacillin (lethal to bacteria)
2nd test tube had arabinose (sugar) |
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After transfering our colonies to the test tubes, the instructor incubated them for 24 hours. What temp were they incubated at?
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37 celcius
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How do you calculate transformation efficiency?
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# of colonies on P+ plate
-------------------------------- total mass of plasmids |
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How do you calculate total mass of plasmids?
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???
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The development of the zygote until hatching or birth of this multiellular induvidual is referrered to as what?
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zygote
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What is cleavage?
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A process of successive cell divisions in vertical and horizontal planes
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A ball of cells (16 cell stage) is called what?
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morula
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Cells arranging themselves around a central cavity - what is the hollow sphere called? What is the central cavity called?
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blastula
blastocoel |
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When one end of the blastula pushes into the cell cavity, this is called what?
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gastrula (like pushing in a balloon)
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The pushing in movement of cells creates a tube like structure called the what? With an opening to the exterior called the what?
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archenteron (primitive gut)
blastopore |
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What is the distinctive layer that faces the external surface? What faces the interiror?
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ectoderm
endoderm |
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What is the third layer of cells that arise between the ectoderm and the endoderm?
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mesoderms
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What are examples of the ectoderm?
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skin, hair, nails, claws, teeth, etc
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What are some examples of the endoderm?
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lining of digestive tract, respiratory passages
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What are some examples of the mesoderm?
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muscles, blood, heart, reproductive organs
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In starfish (echinoderm), fertilization is ______ and in an aquatic environment.
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external
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Starfish larva is called what?
Sea urchin larva is called what? |
Bipinnaria
Pluteus |
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Is a frogs eggs fertilizations internal or external?
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external
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Define the following:
Yolk Sac Amnion Allantois Chorion |
1. Embryos nutrient source
2. A pond in which the embryo floats 3. Functions to excrete the waste and to from the future blood vessels 4. Involved in the transport of repsiratory gases and nutrients |
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Fertilization of the chick is internal or external?
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internal
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Development of the chick is internal or external?
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Both
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