the probability that a coin will come up tails when flipped
a farmer breeds only his best livestock
animals that are warm-blooded, have body hair, and produce milk for their young
evidenced by similar genes
correct order of the biological taxons
kingdom, phylum, class, order, family, genus, species
long strands, shaped like a double helix (spiral staircase)
DNA replication of a strand that has bases CTAG
produces a strand that has bases GATC
one whose trait always shows up in the organism when the allele is present
explanation for the observation that females rarely get the disease hemophilia
a female's good X is dominant over her bad X
example of a sex-linked trait because it is found on the 23rd pair of chromosomes
organisms that have two identical (same) alleles
an organism that has two identical recessive allels for a trait
requires both large and small categories
a family record that indicates the occurrence of a trait
principle of dominance
states that some alleles are dominant and others are recessive
reasons that biologists use a classification system to group organisms
organisms are numerous, diverse, and often have many different common names
is the same for an organism all over the world and will have one genus name followed by one species identifier
second word in a scientific name
tells you the species
shape of birds beaks
one structural adaptation that Darwin found on the Galapagos Islands
South America, Galapagos Islands
place where Charles Darwin made many observations during his voyage on the Beagle
variation and natural selection
basis of Darwin's theory of evolution
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