Biology GMA Study Guide S22 - Part 4

What is the probability of having an offspring with the genotype Tt?

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What is the probability of having an offspring with the genotype TT?

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What is the probability of having an offspring with the genotype tt?

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What is the probability of having an offspring with a long tail?

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What is the probability of having an offspring with a short tail?

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Albinism is a recessive condition. If two normal parents, genotypes Aa and Aa have a child, what is the likelihood he or she will have the recessive phenotype?

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What is the difference between a hypothesis and theory?

• A hypothesis is when one scientist believes something is true while a theory is when multiple scientists agree
• A theory is an educated guess while a hypothesis is well-tested and widely accepted
• A hypothesis is tested but a theory is not
• Hypotheses can change but theories cannot

What are the 4 requirements for Darwin's Theory of Evolution?

• Populations must have differences in traits; variations
• Some organisms have an advantage/adaptation that allows them to survive better; selection
• The most fit organisms survive and reproduce, passing on their traits
• There is a struggle for survival so more organisms are born than can survive; overproduction
• Living things are made of cells; cells are the smallest unit of life

Which of the following are true about natural selection?

• Humans have used the idea of natural selection to do artificial selection
• The environment gives the selective pressure so that only the fittest survive
• Organisms that do better in an environment are said to have adaptations
• All answers are true

What are the 5 processes of microevolution?