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Tutor profile: Sabina K.

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Sabina K.
Graduating Senior at UC Davis
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Questions

Subject: Natural Sciences

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Question:

B is a dominant allele for a black coat rabbit and b is a recessive allele for a white coat rabbit. If a homozygous recessive rabbit mates with a heterozygous rabbit, what percentage of their offspring will have a white coat?

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Sabina K.
Answer:

This can be answered using a Mendelian Genetics punnett square. On one side you would put "bb" for the homozygous recessive rabbit and "Bb" for the heterozygous rabbit. After crossing the pair you would find: Bb, Bb, bb, and bb. Since B is dominant, the Bb rabbits would be black and the bb would be white. Therefore, 50% of the offspring would be white.

Subject: Psychology

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Question:

What is the "Big Five" in terms of personality?

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Sabina K.
Answer:

The "Big Five" refers to five dimensions of personality; openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. Openness to experience consists of traits such as intellectual curiosity, aesthetic sensitivity, and creative imagination. Conscientiousness involves organization, responsibility, and productivity. Extraversion consists of sociability, assertiveness, and energy level. Agreeableness comprises of respectfulness, compassion, and trust. Lastly, neuroticism consists of anxiety, depression, and emotional volatility.

Subject: Biology

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Question:

Are viruses alive?

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Sabina K.
Answer:

Viruses are unique because they have some characteristics that support that they are alive and other characteristics that do not. Viruses contain a nucleic acid (DNA or RNA), can reproduce, have a complex structure, and can respond to its environment. These are all characteristics of organisms that are alive. On the other hand, viruses are not made up of cells, they can not reproduce without a host, and they do not metabolize energy. We do not find theses characteristics in organisms that are alive. Due to these conflicts in characteristics, viruses are neither classified as alive or not alive.

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