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Genetics I
DNA
Genetics II
Evolution II
Evolution
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Technology
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The passing of traits from parents
to offspring
HEREDITY
Having two dominant alleles for
a trait
HOMOZYGOUS DOMINANT
An organism’s genetic make up
constitutes this
GENOTYPE
Mendel’s finding that the alleles
of a gene separate from each
other during meiosis
Law of Segregation
Mendel’s finding that the
inheritance of one trait had no
effect on the inheritance of
another trait
Law of Independent Assortment
The X and Y chromosomes are
also known as this
SEX CHROMOSOMES
A trait found on the X
chromosome is said to be this
SEX-LINKED
Phenomenon that occurs when
the dominant allele is not
completely dominant over the
recessive allele.
INCOMPLETE DOMINANCE
Phenomenon where two alleles
are both dominant – seen in Type
AB blood
CODOMINANCE
Phenomenon where more than
one pair of alleles codes for one
particular trait (Ex/Hair color &
skin color)
POLYGENIC TRAIT
An organisms complete collection of
genes is called its?
GENOME
What is this a picture of?
DNA FINGERPRINT
Enzymes that cut DNA molecules
at specific sequences
RESTRICTION ENZYMES
Small, circular pieces of bacterial
DNA that replicate when the
bacterial cell replicates. Often
used in genetic engineering
experiments.
PLASMIDS
A piece of DNA that has been
created by “gluing” together
DNA from two different sources
RECOMBINANT DNA
Darwin developed his Theory of
Evolution after visiting this place
GALAPAGOS ISLANDS
Process by which populations
become better suited to their
environments
ADAPTATION
The ability to survive and
reproduce in a particular
environment
FITNESS
Structures that have similar
anatomical structure but different
functions
HOMOLOGOUS
STRUCTURES
Structures which seem to have no
current function in an organism
(but did in an ancestor)
VESTIGIAL STRUCTURE
All of the genes in a population
of organisms
GENE POOL
Members of a population that can
mate and produce fertile
offspring define this
A SPECIES
Separation of members of a
population by some physical
barrier (like a river)
GEOGRAPHIC ISOLATION
When allele frequencies remain
stable from one generation to the
next
GENETIC EQUILIBRIUM
When selection favors
intermediate phenotypes
STABILIZING SELECTION