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bio exam 3/11/10

bio exam,

QuestionAnswer
study of life biology
contains information for growth and development DNA
smallest units that can carry on all the functions of life cells
bacterium prokaryotic cell example
structure that regulates what enters and leaves the cell cell membrane
an active cell would have large numbers of these energy producting organelles mitochondria
organelle that maintains homeostasis by moving supplies from one part of the cell to another ER
makes protiens ribosomes
the packaging and distribution center of the cell golgi apparatus
found only in plant cells cell wall
organelle in plants taht contain a green pigment chloroplasts
very large in plant cells to store water, wastes and nutrients vacuoles
breaks down food molecules to release stored energy cellular respiration
glucose is split; two molecules of pyruvate are made; some ATP is produced glycolysis
produced when muscles are exercised entensively in the absence of sufficient oxygen lactic acid
represents chromosomes present in a somatic cell karyotype
46 in humans diploid number
23 in humans (found in sex cells); always half of diploid number haploid number
scientific study of heredity genetics
father of genetics gregor mendel
reflects all traits that are actually expressed phenotype
same alleles (letters) for a trait homozygous
device used to determine the probable outcome of genetic crosses punnett square
long chains that make up DNA molecules nucleotides
scientists credited with establising the structure of DNA watson/crick
complementary to adenine in RNA molecules uracil
sex chromosomes XX & XY
mutations caused by a piece of DNA breaking away from it's chromosome and becoming attached to a non homologous chromosome translocation
change in a gene due to dammage or being copied incorrectly mutations
characteristics that occure mostly in males sex-linked traits
sex-linked trait colorblindness
causes people to have 47 chromosomes down syndrome
Created by: cdrscr
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