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| Messenger rna, orders amino acids |
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| MRNA is made from DNA in nucleus |
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| Pull apart material when cell divides |
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| Haploid, only half of the 46 chromosomes |
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| The original DNA that is being copied |
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| 2n, has all 46 chromosomes |
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| Group of 3 nucleotides with amino acid |
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| How and why does DNA replication occur? |
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| 1. By unzipping and filling missing nucleotides in. 2. To make copies and more cells |
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| Why are codons 3 letters rather than 1 or 2? |
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| 1 or 2 would not have enough combinations for 20 amino acids |
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| Why is mitosis necessary? |
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| To make cells so the organism can grow and heal |
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| List mendel's 3 principles, briefly explain |
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1. Dominance-one trait covers another
2. Segregation-1/2 genes passed
3. Independent assortment- one trait doesn't care about another type |
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| Something changes ex. ABC-DEF -> ABC-GHI |
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| Carries a trait but does not have it |
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| One trait is not completely dominant over the other |
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| A chance that something will happen |
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| How do we know muscular dystrophy is a sex linked disease? |
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| Because women can't get it |
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| Organs that aren't used anymore |
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| One species evolves into two different species |
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| Simple primates ex. Lemurs |
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| Different functions, look similar |
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| Remains of creatures that died |
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| Dating based on things around it |
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| Australopithecus afarensis |
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| Different species evolving at the same time |
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| List the 4 eras and describe the dominant life form found |
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Precambrian-simple organisms
Paleozoic-fish
Mesozoic-reptiles
Cenozoic-mammals |
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| Which of the 6 evidences best supports the theory of evolution and why |
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| Vestigal organs- they used to be used and they are still in our body but we don't need them anymore |
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| What us the big deal about Lucy? |
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| Why do the 13 species of finches on the galopagos islands have different beaks? |
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| To be able to eat the seeds where they live |
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| Species that only live in one place |
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| What is a primate? (3 reasons) |
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| Fingernails, color vision, hair |
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| Secondary immune response |
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| Memory, helps to kill viruses faster |
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| Weakened form or similar shape |
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| Blue-green algae, photosynthesis |
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| Cells divide to reproduce |
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| Making a guess based on what you already know |
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| 20 sided, shape of most bacteria |
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| Greatest cause of death in human history |
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| All the petals of a flower |
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| Alternation of generations |
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| N stage of a moss or fern |
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| Only eat shellfish in months with an r |
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| Plants that produce an embryo |
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| Evil ones- can't move on their own |
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