WorksheetsAP Bio Ch 8, 9, 10, 15 Test Review #3
Total questions: 10
Worksheet time: 6mins
__ refers to the processes by which cells with identical genotypes become structurally and functionally distinct from one another according to the genetically controlled developmental program of the species.
Metamorphosis
Metastasis
Cleavage
Differentiation
Genes that control the information about the basic body plan of eukaryotes are called ____.
homeotic genes
knock out genes
represser genes
toll genes
In multicelled eukaryotes, cell differentiation occurs as a result of __.
growth
expression of different subsets of genes
repressor molecules
the death of certain cells
What is the primary difference between eukaryotes and prokaryotes in terms of gene expression?
Prokaryotes express different genes as a response to their environment; eukaryotic cells do not do this.
Prokaryotes express different genes as a response to selective pressures; eukaryotes express the same genes most of their lives.
Prokaryotes generally alter gene expression in response to immediate environmental changes; eukaryotic cells generally respond to selective pressures.
Prokaryotes generally alter gene expression in response to immediate environmental changes; eukaryotes do that as well as alter gene expression for the purpose of cell differentiation.
There is really no difference between gene expression in eukaryotes and prokaryotes.
Post-translational modification includes __.
cleavage of ploy-A tails from mRNA
the binding of miRNAs to mRNA
the chemical modification, processing, degradation of proteins
chromatin remodeling
A, B, and C only
__ is the RNA that forms part of the ribosome.
snRNA
pre-mRNA
tRNA
rRNA
mRNA
The expression of a given gene depends on __.
the type of organism
environmental conditions
the type of cell
all of the above
Gene expression in cells of multicelled eukaryotes changes in response to __.
conditions outside the cell
master genes products
operation of operons
A and B
Controls over eukaryotic gene expression guide __.
natural selection
nutrient availability
development
all of these
__ is the RNA with an anticodon and a linkage site for a specific amino acid.
pre-mRNA
tRNA
snRNA
rRNA
mRNA
