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21 Cards in this Set

  • Front
  • Back
complementary base pairs
between nucleotides
histones
-DNA wraps around tof rom chromosomes
-protein
-info determined by order of bases
polymerase
enzyme that speeds up matching of nucleotides
new combinations of genes
-independent assortment
-crossing over
-segregation of alleles
A T


G C
-2 bonds formed


-3 bonds formed
mutation
physical change to gene
Recombination
creation of new combination of alleles during meiosis
nucleic acid
long strand of nucleotides bonds together forms nucleic acid
PHENOTYPE
physical, describing trait
GENOTYPE
type of gene and DNA
ALLELE
one of the range of genes for a certain trait (ex...eye color)
CARRIER
has the gene but not the phenotype
DOMINANT
ONE allele for trait
RECESSIVE
two alleles for each trait
homo/heterozygous
TWO of same/different alleles
Incomplete Dominance
2 alleles of dominant gene (Bb)
Independent Assortment
each chromosome acts by itself and any gene goes with any gamete
Nondisjunction
when an error occurs and neither chromosome gets in one of the cells
Properties that make up DNA
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
Hydrogen bonds
BETWEEN BASES and weak so can break a part
COVALENT BONDS
within strans and strong