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UCI BIO 93 Final Exam Questions With 100% Verified Answers

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UCI BIO 93 Final Exam Questions With 100% Verified Answers What is an example of incomplete dominance? - answerA red and white snapdragon making a pink offspring What is an example of co-dominance? - answerBlood cells. What is Pleiotropy? - answerWhen a gene affects more than one phenotypic c...

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  • October 2, 2024
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UCI BIO 93 Final Exam Questions With
100% Verified Answers

What is an example of incomplete dominance? - answer✔A red and white snapdragon making a

pink offspring


What is an example of co-dominance? - answer✔Blood cells.


What is Pleiotropy? - answer✔When a gene affects more than


one phenotypic character.


What is the norm of reaction? - answer✔The range of phenotypic possibilities


What are some example of polygenic inheritance? - answer✔Skin color and height


Norms of reactions are broadest for _____________ characters - answer✔polygenic


Genetic traits in humans can be tracked through what? - answer✔Family pedigrees


What is loosely packed chromatin called? - answer✔Euchromatin


What happens in histone acetylation? - answer✔Acetyl groups are attached to histone tails


What is the purpose of histone acetylation? - answer✔To loosen chromatin structure to promote

initiation in transcription.


In what gender is Igf2 expressed in? - answer✔The maternal chromosome

, ©BRAINBARTER 2024/2025


What does it mean for a protein to be ubiquitinated? - answer✔Ubiquitin attached to the protein

and takes it to a proteasome that degrades the protein.


What does a repressor do? - answer✔Block transcription of a gene


What does an activator do? - answer✔Stimulate the transcription of a gene


What binds to the enhancers? - answer✔The activators


What are some ways that mRNA can be degraded? - answer✔shortening of poly A tail, removal

of cap, nucleases chew up mRNA


What are histones responsible for? - answer✔1st level of DNA packing in chromatin


What is a region of highly condensed chromatin called? - answer✔Heterochromatin


What is cell differentiation? - answer✔The process by which cells become specialized


What is the physical process that gives the organism its shape called? - answer✔Morphogenesis


What are cytoplasmic determinants? - answer✔Substances in the egg that influence early

development


What is induction? - answer✔The process that allows cells in the embyro to communicate with

the cells around them.


What is determination? - answer✔Commits a cell to its final state


What comes first, determination or differentiation? - answer✔Determination

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