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21 Cards in this Set
- Front
- Back
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complementary base pairs
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between nucleotides
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histones
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-DNA wraps around tof rom chromosomes
-protein -info determined by order of bases |
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polymerase
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enzyme that speeds up matching of nucleotides
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new combinations of genes
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-independent assortment
-crossing over -segregation of alleles |
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A T
G C |
-2 bonds formed
-3 bonds formed |
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mutation
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physical change to gene
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Recombination
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creation of new combination of alleles during meiosis
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nucleic acid
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long strand of nucleotides bonds together forms nucleic acid
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PHENOTYPE
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physical, describing trait
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GENOTYPE
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type of gene and DNA
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ALLELE
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one of the range of genes for a certain trait (ex...eye color)
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CARRIER
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has the gene but not the phenotype
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DOMINANT
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ONE allele for trait
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RECESSIVE
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two alleles for each trait
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homo/heterozygous
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TWO of same/different alleles
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Incomplete Dominance
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2 alleles of dominant gene (Bb)
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Independent Assortment
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each chromosome acts by itself and any gene goes with any gamete
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Nondisjunction
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when an error occurs and neither chromosome gets in one of the cells
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Properties that make up DNA
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1. in every cell
2. independent action for chromosomes 3. 2 copies from each parent 4. mainly same with sm. changes 5. describes infinite # of traits |
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Hydrogen bonds
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BETWEEN BASES and weak so can break a part
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COVALENT BONDS
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within strans and strong
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