1|Page
UCI BIO 93 (TRIO) FINAL REVIEW EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS|
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cell differentiation - (answers)Different combinations of activators and repressors
can lead to differential gene expression.
These different combinations of transcription factors/repressors can also lead to
cell differentiation
RNA Splicing - (answers)Can lead to the formation of different protein products
from a single gene
mRNA Degradation - (answers)Prevents mRNA from being translated.
Achieves this through the removal of the 5' and shortening of poly-A tail.
Translation Initiation - (answers)Translation initiation can also be prevented when
substances block the mRNA or the ribosome.
Cytoplasmic determinants - (answers)include molecules such as RNA and proteins
that result in differential gene expression.
Once the zygote divides, the uneven distribution of cytoplasmic determinants will
contribute to cell differentiation
Cell Determination - (answers)Cells become "determined" to a specific cell type
once mastery regulatory genes are turned on.
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In the case of muscle cells for example, transcription of the MyoD gene commits
an undifferentiated cell to become a muscle cell.
The MyoD gene codes for a transcription factor that activates the expression of
other genes.
Induction - (answers)the process where embryonic cells undergo transcriptional
changes after receiving signal molecules from nearby cells.
Pattern Formation - (answers)Pattern formation establishes the major axis and
body segments of an organism.
Cytoplasmic determinants influence the process of pattern formation.
Bicoid - (answers)Bicoid is a maternal effect gene that helps establish the anterior
end of Drosophila.
Bicoid product is found at the anterior end of the embryo and is an example of a
morphogen.
Morphogens are unevenly distributed substances that aid in pattern formation.
Stages of Embryonic Development - (answers)1. Fertilization
UCI BIO 93 (TRIO) FINAL REVIEW EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100% VERIFIED
QUESTIONS AND CORRECT SOLUTIONS|
GUARANTEED VALUE PACK| ACE YOUR GRADES.
cell differentiation - (answers)Different combinations of activators and repressors
can lead to differential gene expression.
These different combinations of transcription factors/repressors can also lead to
cell differentiation
RNA Splicing - (answers)Can lead to the formation of different protein products
from a single gene
mRNA Degradation - (answers)Prevents mRNA from being translated.
Achieves this through the removal of the 5' and shortening of poly-A tail.
Translation Initiation - (answers)Translation initiation can also be prevented when
substances block the mRNA or the ribosome.
Cytoplasmic determinants - (answers)include molecules such as RNA and proteins
that result in differential gene expression.
Once the zygote divides, the uneven distribution of cytoplasmic determinants will
contribute to cell differentiation
Cell Determination - (answers)Cells become "determined" to a specific cell type
once mastery regulatory genes are turned on.
, 2|Page
In the case of muscle cells for example, transcription of the MyoD gene commits
an undifferentiated cell to become a muscle cell.
The MyoD gene codes for a transcription factor that activates the expression of
other genes.
Induction - (answers)the process where embryonic cells undergo transcriptional
changes after receiving signal molecules from nearby cells.
Pattern Formation - (answers)Pattern formation establishes the major axis and
body segments of an organism.
Cytoplasmic determinants influence the process of pattern formation.
Bicoid - (answers)Bicoid is a maternal effect gene that helps establish the anterior
end of Drosophila.
Bicoid product is found at the anterior end of the embryo and is an example of a
morphogen.
Morphogens are unevenly distributed substances that aid in pattern formation.
Stages of Embryonic Development - (answers)1. Fertilization
