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BIO 230 EXAM -1 SFSU QUESTIONS WITH SOLVED SOLUTIONS UPDATED

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BIO 230 EXAM -1 SFSU QUESTIONS WITH SOLVED SOLUTIONS UPDATED

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What was the process for creating goats that could make silk in their milk?


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They used promoters which decide when and where a gene is "turned on"




Where are the nucleotides in a DNA molecule?


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They're the innermost part of the molecule




Does the place in the DNA sequence where the extra nucleotides are inserted
matter? Why?

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Depending on where it is placed will depend on if the amino acid
sequence is changed in the dictionary of genetic code, sometimes when
there's a substitution, due to the redundancy of the dictionary, the same
sequence can be produced




Which is usually bigger, a virus or a protein molecule?


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A virus is larger




What are the benefits of taking a gene from one organism and putting it into another?


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to improve the species




Where is RNA in a cell?


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synthesized in nucleus, but found in cytoplasm




Does an deletion mutation always change the amino acid sequence of the protein?

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Yes




What are exons?


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The remaining pieces of pre-mRNA that are spliced together to form the
final mRNA.




Where is genetic information stored in a DNA molecule?


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it is stored in the nitrogenous base




Are hydrogen bonds weak or strong?


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Weak




How are prokaryotic cells and eukaryotic cells different?


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