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Final Jeopardy

Hardy-
Weinberg
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Natural/
Artificial
Selection
Evidence of
Evolution
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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 Hardy-
Weinberg.

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 Hardy-
Weinberg 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 Hardy-
Weinberg problems?

q 2

Label each component of the
Hardy-Weinberg Principle.
p 2 +2pq +q 2 =1

p 2 = homozygous dominant
2pq = heterozygous q 2 = homozygous recessive
1 = total in gene pool

Make your wager

What game did
Hardy like to play with Punnett?

Cricket