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BIOL 250 Final Exam with correct answers
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BIOL 250 Final Exam with correct answers
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BIOL 250 Final Exam with correctanswers
what types of biological molecules replicate DNA? - ** VERIFIED ANSWERS **✔✔proteins
what processes occur during interphase? - ** VERIFIED ANSWERS **✔✔DNA replication
organelle replication
RNA synthesis
protein synthesis
is DNA, RNA, or both produced by DNA polymerase? - ** VERIFIED ANSWERS **✔✔DNA
you observe that Gene X is highly expressed in neurons but is not expressed in intestinal cells. If you
could assess the chromatin surrounding Gene X in both cell types, what would expect to observe? -
** VERIFIED ANSWERS **✔✔high levels of DNA methylation in intestinal cells
Which of the following mutations would most likely disrupt the nuclear localization of a protein?
Normal: Pro - Pro - Lys - Lys - Lys - Arg - Lys - Val - ** VERIFIED ANSWERS **✔✔pro-pro-asp-lys-
lys-arg-lys-val
only _____ contains ribose - ** VERIFIED ANSWERS **✔✔RNA
molecules are made of ________ that are attached by chemical bonds formed by sharing, gaining, or
losing _________. - ** VERIFIED ANSWERS **✔✔isotopes / electrons
how is M-phase rapidly triggered by M-Cdks? - ** VERIFIED ANSWERS **✔✔M-cyclin/cdk
complex is held inactive by phosphorylation and is rapidly activated by Cdc25
, protein domains are sequences of amino acids that are similar in many different proteins and lead to
different proteins that are made of similar 'parts'. what is the most likely explanation for the
evolution of protein domains? - ** VERIFIED ANSWERS **✔✔exons are shuffled to new genes
rNA in cells differs from DNA in that _____________ - ** VERIFIED ANSWERS **✔✔it is single-
stranded and can fold into a variety of structures
where would you predict a protein to be localized if it has a chain of hydrophobic amino acids at the
N-terminus? - ** VERIFIED ANSWERS **✔✔ER
which of the following amino acids would you expect to find on the surface of a protein? - **
VERIFIED ANSWERS **✔✔serine
what are the steps of protein transport across the ER? - ** VERIFIED ANSWERS **✔✔1 - begins in
cytosol
2 - ER signal binds to SRP (stalls)
3 - ribosome anchored to membrane by SRP
4 - ER signal transferred to the protein translator
5 - protein is transferred across membrane
6 - signal peptidase cleaves the ER signal and protein is released in ER lumen
what is related to transcription? - ** VERIFIED ANSWERS **✔✔RNA polymerase
general transcription factors
terminator
sigma factor
splicing
what is related to DNA replication? - ** VERIFIED ANSWERS **✔✔origin of replication
primase
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