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VariationVariationVariationVariation RegentsRegentsQuestionsQuestions

RegentsRegentsQuestionsQuestions

SurvivalSurvivalof theof theFittestFittest

SurvivalSurvivalof theof theFittestFittest

MechanismsMechanismsof Evolutionof Evolution

MechanismsMechanismsof Evolutionof Evolution

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VariationVariation for $100 for $100

AnswerAnswer

A mistake in the DNA sequence, resulting in

variation

Mutation

Back to theBack to theBoardBoard


AnswerAnswer

The type of cell division that produces

unique offspring

Meiosis



AnswerAnswer

The type of reproductionreproduction that produces variation in

the offspring.

Sexual reproduction



AnswerAnswer

When homologous homologous chromosomeschromosomes pair up

during meiosis and exchange genesexchange genes like

baseball cards, causing variation.

Crossing over



AnswerAnswer

Variation in offspring may produce a new and new and desirable traitdesirable trait. For the trait to spreadspread through the population it must

have ________ ______.

Adaptive value


Mechanisms of EvolutionMechanisms of Evolution for $100

Mechanisms of EvolutionMechanisms of Evolution for $100

AnswerAnswer

When a species produces more offspring than can

possibly survive.

OverproductionOverproduction


Mechanisms of Evolution Mechanisms of Evolution for $200


AnswerAnswer

Overproduction and a limited amount of

resources produces this between organisms.

CompetitionCompetition




AnswerAnswer

The major benefit of sexual reproduction, which can

lead to new traits that have adaptive value.


Genetic Variation



AnswerAnswer

Any trait that helps an organism survive and reproduce is said to

have _________ _______.

Adaptive ValueAdaptive Value




AnswerAnswer

The process of the environment choosing which traits have the

most adaptive value, thus choosing which organisms will

survive.

The process of the environment choosing which traits have the

most adaptive value, thus choosing which organisms will

survive.

Natural SelectionNatural Selection


Regents QuestionsRegents Questions for $100Regents QuestionsRegents Questions for $100

AnswerAnswer

A maple tree releases hundreds of seeds in a single season. This is an example of…

A. a mutationB. geographic isolationC. overproduction

D. non-random mating

C. overproductionC. overproduction



AnswerAnswer

A correct interpretation of the theory of natural selection could be…

A. The strongest surviveB. Nature will cause mutations that fit the environment betterC. Individuals will naturally select the variations which allow them to live betterD. Individuals which are most fit to the

environmental conditions will survive.

D. Individuals which are most fit to the environmental conditions will survive.

D. Individuals which are most fit to the environmental conditions will survive.



AnswerAnswer

What is the best definition of evolution? a. Genetic change in an individual. b. Genetic change in a population over

time. c. The process by which humans came

from monkeys. d. The process by which somatic

mutations are passed down to offspring.

• b. Genetic change in a population over time.

• b. Genetic change in a population over time.



AnswerAnswer

The structural similarities between the flippers of whales and the arms of humans are used to show that the…

a. human species began life in the oceans b. human species and whales have a common

ancestry c. whales are older than the human species d. whales evolved from the human species

b. human species and whales have a common ancestry

b. human species and whales have a common ancestry



AnswerAnswer

The short “tailbones” of humans are thought to be an example of

A. Homologous structures proving evolution

B. An adaptation caused by an early ancestors need to have a tail to

surviveC. Homogeneous structures which indicate

common ancestryD. Vestigial structures which are remnants of

structures no longer needed for survival

D. Vestigial structures which are remnants of structures no longer

needed for survival

D. Vestigial structures which are remnants of structures no longer

needed for survival


Survival of the FittestSurvival of the Fittestfor $100

Survival of the FittestSurvival of the Fittestfor $100

The struggle for survival between organisms over food, shelter, and mates

The struggle for survival between organisms over food, shelter, and mates

AnswerAnswer

CompetitionCompetition


Survival of the FittestSurvival of the Fittest for $200


Charles Darwin’s theory, that explains how the most fit survive to pass on

their genes

Charles Darwin’s theory, that explains how the most fit survive to pass on

their genes

AnswerAnswer

Natural SelectionNatural Selection




Traits that make on organism more fit to survive are said to have ________ ______ .

Traits that make on organism more fit to survive are said to have ________ ______ .

AnswerAnswer

Adaptive Value

Adaptive Value




Darwin's studies of finches on the Galapagos Islands suggest Darwin's studies of finches on the Galapagos Islands suggest that the finches' differences in beak structure were most that the finches' differences in beak structure were most directly due todirectly due to

( A.)acquired characteristics in the parent A.)acquired characteristics in the parent finches finches ( B.)the size of the island where the finches live B.)the size of the island where the finches live ( C.)mating behaviors of the different finch C.)mating behaviors of the different finch species species ( D.)adaptations of the finches to different D.)adaptations of the finches to different

environmentsenvironments

Darwin's studies of finches on the Galapagos Islands suggest Darwin's studies of finches on the Galapagos Islands suggest that the finches' differences in beak structure were most that the finches' differences in beak structure were most directly due todirectly due to

( A.)acquired characteristics in the parent A.)acquired characteristics in the parent finches finches ( B.)the size of the island where the finches live B.)the size of the island where the finches live ( C.)mating behaviors of the different finch C.)mating behaviors of the different finch species species ( D.)adaptations of the finches to different D.)adaptations of the finches to different

environmentsenvironments

AnswerAnswer

( D.)adaptations of the finches to different D.)adaptations of the finches to different environmentsenvironments

( D.)adaptations of the finches to different D.)adaptations of the finches to different environmentsenvironments


Survival of the Fittest Survival of the Fittest for $500

Survival of the Fittest Survival of the Fittest for $500

Certain strains of bacteria that could be killed by penicillin have now become resistant and penicillin is no longer effective. The probable explanation for this is that

a.the gene mutation rate must have increased naturally.

b.the strains have become resistant because they needed to do so for survival.

c.a mutation that gave some of them resistance was passed on to succeeding generations because it had high survival value.

d.the penicillin influence the bacterial pattern of mating.

Certain strains of bacteria that could be killed by penicillin have now become resistant and penicillin is no longer effective. The probable explanation for this is that

a.the gene mutation rate must have increased naturally.

b.the strains have become resistant because they needed to do so for survival.


d.the penicillin influence the bacterial pattern of mating.

AnswerAnswer

Amino Acids

Name for a chain of Amino Acids

Polypeptide

1

2

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