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15 Cards in this Set

  • Front
  • Back
paired structures made up of strands of chromated which contains DNA and protein. They are made of many genes joined together
chromosomes
to carry genes from parent to offspring
function of chromosomes
through the genes which are passed on to offspring through the chrosomes in the sex cell
how are trais interited
the process of reducing the number of chromosomes in a cell by half to form sex cells
meiois
in order to continue their species from generation to generation
why organisms reproduce
sexual reproduction (cell division) unicellular organism
different forms of reproduction
a change in a gene or chromosome, reduces C or may increase an organism's chance of survival
a mutation
a mistake in DNA replication or chrosomes don't seperate completely
how do mutations occur
dominat-trait is expressed or visible/recessive trait not expressed and not visible, co-dominant/both trais or alleles are expressed
basic pattern of inheritance in genes
different form of gene or hair H=dominate allele for brown hair
allele
a chart that predicts the probability of an offspring having a particular trait
a purrett square
an organism physical appearance
a pnenotype
an organism's allele combination or genetic makeup
a genotype
2 dominate or 2 recessive alleles
homoygous genetype
one dominate and one recessive allele
heterozygous genotype