Download 720 What is artificial selection?

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Final Jeopardy
HardyWeinberg
Natural/
Artificial
Selection
Evidence of
Evolution
Important
Terms
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If an allele makes up
three-fourths of a
population’s alleles
for a given trait, its
relative frequency is
this.
75 percent
In a population, the
sum of the relative
frequencies of all
alleles for a particular
trait is
100 percent or 1
Name two of the
five things that
must be true in
order to have
genetic
equilibrium.
No Natural Selection
Random Mating
No Migration
Large Population
No Mutation
If the allele for PTC
tasters is 0.4, and
PTC tasting is
recessive trait, what
is the frequency of
p?
0.6
If 72% of fruit flies have
normal wings and normal
wings are dominant over
curly wings, what is the
number of flies in 1000 that
would show the dominant
phenotype?
720
What is artificial
selection?
Purposeful
selection of traits
desired for
offspring
What were two observations
made by Darwin that led
him to believe natural
selection was happening?
(specific requirements for
natural selection)
Competition,
Variation,
Adaptation,
Overproduction
Which of the rabbits would be best
suited to mate if you would like a white fur bunny with
Floppy ears?
Rabbits 1 and 6
What does natural
selection work directly
on?
phenotypes
Explain survival of the
fittest
The most adapted
to survive in the
environment with
live and pass on
their genes to
offspring.
Which type of
evidence did
Darwin probably
use? Why?
Fossils; he didn’t
have scientific
equipment
How does a fossil form?
Compression of
footprint/bone into
rock for a long time
What are two pieces of
evidence used to explain
evolution?
Fossils
Embryology
Comparative Anatomy
Behavioral Connections
Biochemical Similarities
Which animal has the
closest DNA sequence to
humans?
Chimpanzee
What is the difference
between homologous and
analogous structures?
Homologous: similar structure,
different function
Analogous: different structure,
similar function
The separation of
populations by
barriers such as
rivers, mountains,
or bodies of water
is called _____.
Geographic
Isolation
A population is said to be
in ________ ________
when following the five
properties of HardyWeinberg.
Genetic
Equilibrium
New species formation
through isolation.
Speciation
This is what occurs
when organisms are
selected for or
against based on
phenotypes.
Natural Selection
When looking at p or
q in the HardyWeinberg Principle,
what is being
compared?
Allele Frequencies
What is the theory
of evolution?
All animals evolved
from a common
ancestor and
evolution is change
over time
The two main
sources of genetic
variation are
________ and
______.
Gene shuffling and
mutations
In organisms that
reproduce sexually,
inheritable
variation is due
mostly to ______.
Gene shuffling
during gamete
formation
What MUST be
found first when
doing HardyWeinberg
problems?
2
q
Label each component of the
Hardy-Weinberg Principle.
p2 +2pq +q2 =1
p2 = homozygous dominant
2pq = heterozygous
2
q
= homozygous recessive
1 = total in gene pool
Make your wager
What game did
Hardy like to play
with Punnett?
Cricket