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59 Cards in this Set
- Front
- Back
DNA |
Deoxyribonucleic acid. First discovered by Crick and Watson. |
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Adenine matches? |
Thymine |
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Guanine matches? |
Cytosine |
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DNA stores information instructions in a |
double helix structure |
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Is DNA complimentary? (know one know both) |
Yes. A=T and G=C |
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1 DNA molecule has how many base pairs? |
200 million |
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How many chromosomes does each parent give? |
23 |
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Chromosomes are? |
Unique, specific traits. |
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Genes are? |
sequences of code for one specific product. |
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Allele are? |
Alternative versions of the same gene. (this determines traits) |
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Is all DNA equal? |
No. |
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DNA that does not produce proteins is called... |
Non-coding DNA. |
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What does non-coding DNA help to do? |
It helps to regulate DNA. |
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Genotype? |
A particular trait. |
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Phenotype? |
Physical appearance of the trait. (Red flowers) |
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Transcription? |
A copy is made. |
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Translation? |
Copy is used to make a protein. mRNA used to direct production of protein in the cytoplasm. |
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Steps for making DNA. |
1)Recognize and bind. (RNA polymerase recognizes promotor and binds to strand) 2)Transcribe. Unwinds and copies making mRNA. 3)Terminate. (stop copying. Release mRNA) 4)Cap/process. (cap tail added to protect and recognize) |
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Amino acids and ribosomes are required for? |
Translation. |
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Translating molecules translate... |
the mRNA code into amino acids. |
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3 steps to translation. |
Recognize. Longate. Terminate. |
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What is a genome? |
All genes possessed by an organism. |
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Positive control |
Start or speed up of transcription |
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Negative control |
block or slow down transcription |
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Mutations |
Alteration in the sequence of bases in DNA. (can be helpful or harmful or neutral) |
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Non sex-cells mutations cannot... |
be passed down to offspring. |
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Types of mutations |
Substitution, insertion, delation |
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Chromosomal aberration |
change to the organization of genes |
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Biotechnology |
modifying cells and molecules |
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Genetic engineering |
adding, deleting transplanting genes |
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Mutation? |
alteration of the base-pair sequence of an individuals DNA. |
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somatic cells? |
the cells forming the body of an organism are not passed from parent to offspring. |
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Reproductive cells? |
There are passed from parent to offspring. |
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How are mutations caused? |
Radiation or chemicals in the environment or spontaneously. |
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Genetic drift? |
Random change in allele frequency in a population. It is much greater in smaller populations. |
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Fixation- |
When an alleles frequency in a population reaches 100%. |
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Founder effect- |
New population has a different allele frequency. |
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Bottle neck effect- |
A large potion of a population die out. |
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Migration or gene flow- |
The movement of some individual species from one population to another. |
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Natural selection- |
1. There must be variation for the trait within a population. 2. That variation must be heritable (that is, capable of being passed from parents to offspring). 3.Individuals with one version of the trait must produce more offspring than this with a different version of the trait. |
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Inheritance or heritability is |
The transmission of traits from parents to their children. |
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Differential reproductive success- |
from all the variation existing in a population, individuals with traits most suited to survival and reproduction in their environment generally leave more offspring than do individuals with other traits. |
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Learned behaviors |
From the environment, acquired, altered, and modified over time. |
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Instinct or innate behaviors- |
don't require environment. Example is fixed action pattern. Goose getting an egg. |
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Choosy mates- |
1 |
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Altruistic behaviors- |
seem to come at a cost to the individual performing them while benefiting a recipient. This includes squirrels sounded an alarm when a bird comes. caller is killed by predator. |
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Kin selection- |
individual gives itself up for the community. |
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Individual fitness- |
Reproductive output that individual's bring about through their seemingly altruistic behaviors. This redefined measure of fitness is call inclusive fitness. |
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Inclusive fitness-
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Mother and fetus interest differ when it comes to food. |
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Evolve kin section- |
Repeated interaction, benefits greater than cost, recognize and punish cheaters. |
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Mismatch environment- |
creature in a situation where they have to adapt. |
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The sex with greater energetic input will be more discriminating. |
The sex with the lower energetic input will compete among themselves for the higher sex. |
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Mate guarding- |
Long mating. Males block the mating passage. |
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Polygamy- |
Multiple mates |
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Polygyny- |
individual males mate with many females |
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Polyandry- |
Individual female with many males |
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Monogamy- |
one mate |
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Communication types- |
Chemical, acoustical, visual. |
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Evolution- |
Genetic change in a population. |