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when present with another allele, has actions over shadowed |
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what trait is actually expressed |
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dominant trait will always overshadow recessive |
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you get one allele from each parent |
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law of independent assortment |
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genes aren't always linked, color and texture of hair have no connection, offspring will be different |
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combo of 2 heterozygotes that produce a "medium" trait |
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combo of 2 alleles in a heterozygote results in the expression of both traits...blood type |
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determined by more than one gene, skin color and height |
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occurs when a single gene affects more than one trait |
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genes that are inherited together... fruit flies body color and wing size have a direct correlation |
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determined by genes found on sex chromosomes |
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only reproduction chromosomes, one little branch |
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what humans have for most of their chromosomes, two little branches |
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Humans have how many chromosomes? |
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RNA is used to assemble proteins |
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three nucleotides in the mRNA strand.. ATG |
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three nucleotides in the tRNA strand |
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one base( nucleotide) replaces another |
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nucleotide changed, but no effect on amino acids |
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causes single amino acid to change to another amino acid |
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causes single amino acid to change to stop.. not possible |
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step in metaphase, chromosomes switch and it is why offspring look different. |
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cellular reproduction in which number of chromosomes are reduced by 1/2 through separation of homologous chromosomes. for a sexual reproduction function. 4 haploid outcome |
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process of asexual reproduction in which cell divides into 2 producing a replica with equal number of chromosomes. function of cellular reproduction and growth. has a 2 diploid outcome |
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1. metabolic. 2. generative 3. responsiveness 4. control process 5. structural simularities |
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nutrient processing characteristic of life |
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growth and reproduction characteristic of life |
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adapting to surroundings characteristic of life |
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regulation and coordination of metabolic system characteristic of life |
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all living things have cells characteristics of life |
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bacteria, ring-like chromosomes, smaller, have no nucleus |
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animal and plant cell, has a nucleus, larger, linear chromosomes, single or multiple celled |
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assembles proteins to kick out |
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assembles membranes and lipods |
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energy is obtained in this organelle |
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holds the DNA in the cell |
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breakdown organic waste in cell |
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post office, packages things in cell for transport |
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synthesizes sunlight in the cell |
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length of DNA at the ends of chromosome get shorter with every cell division.. around 40 times |
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cells can divide infinitely.. cancer, germs, bacteria |
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