STUFF FOR BIOL 1202 - Pretest questions: *answers that are...

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***answers that are given aren’t necessarily correct, i just put down all that I could remember 1) Population was divided into two subpopulations by physical barrier and in different environments. physical barrier is removed but they are two different species now, what type of speciation occurred? -allopatric 2) Paralogous genes can diverge while connected to the gene pool, while orthologous genes must be isolated to diverge. why? -because paralogous genes are multiple copies of the same gene in a genome while orthologous genes (make up 99% of genes) require reproductive isolation to occur before they can diverge. 3) For Miller and Urey experiment, what conditions did they use? -atmosphere was H2, ammonia (NH3), methane (CH4), and water vapor. they added sparks to simulate lightning or reduction (which adds electrons 4) Two species that had 18 produced another species with 36. example of? -allopolyploidy 5) know #3 6) Cichlid Fish in lake Victoria are abundant because of? -sympatric speciation **know order of origin of life: 1. monomers 2. polymers 3. protobionts 4. genetic material formed 7) What doesn’t support that RNA was used in early life organisms as genetic code? -short stretches of RNA can do something with nucleotides -modern cells use RNA as a template for DNA (correct answer) -modern cells use RNA to make proteins -RNA can be used as a catalyst for some reactions 8) Shared ancestral traits would be in both the ingroups and outgroups of descendants. -true 9) First protobionts could not what? -reproduce successfully or contain a mechanism for store genetic information 10) _____ formed from aerobic cells and _____ formed from photosynthetic cells that were engulfed by a cell and lived in harmony or something like harmony -mitochondria; chloroplasts 11) A cladistics or systematics thing that doesn’t show a common ancestor for all the species is called what? -polyphyletic
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This note was uploaded on 03/19/2012 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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STUFF FOR BIOL 1202 - Pretest questions: *answers that are...

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