Which of the following are maternal effect genes that control the orientation of the
egg and thus the Drosophila embryo?
A) homeotic genes
B) segmentation genes
C) egg-polarity genes
D) morphogens
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, C) egg-polarity genes
What would the anticodon be for a tRNA that transports
phenylalanine to a ribosome?
A) TTT
B) UUU
C) CCC
D) AAA
E) none of the above
Give this one a try later!
Which of the following statements about the DNA in one of your brain cells is true?
A) most of the DNA codes for protein
B) the majority of genes are likely to be transcribed
C) each gene lies immediately adjacent to an enhancer
D) it is the same as the DNA in one of your heart cells
E) many genes are grouped into operon-like clusters
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D) it is the same as the DNA in one of your heart cells
,The protein of the bicoid gene in Drosophila determines the _____ of the embryo
A) anterior-posterior axis
B) anterior-lateral axis
C) posterior-dorsal axis
D) posterior-ventral axis
Give this one a try later!
A) anterior-posterior axis
Gene function can be determined by disabling the gene using
A) in vitro mutagenesis
B) reverse transcriptase- polymerase chain reaction
C) in situ hybridization
D) nuclear transplantation
E) none of the above
Give this one a try later!
A) in vitro mutagenesis
CAP is said to be responsible for positive regulation of the lac operon because _____.
A) CAP binds cAMP
B) CAP binds to the CAP-binding site
C) CAP prevents binding of the repressor to the operator
D) CAP bound to the CAP-binding site increases the frequency of transcription
initiation
Give this one a try later!
, D) CAP bound to the CAP-binding site increases the frequency of
transcription initiation
The reason for differences in the sets of proteins expressed in a nerve and a
pancreatic cell of the same individual is that nerve and pancreatic cells contain
different _____.
A) genes
B) regulatory sequences
C) sets of regulatory proteins
D) promoters
Give this one a try later!
C) sets of regulatory proteins
What amino acid sequence will be generated, based on the
following mRNA codon sequence?
5' AUG-UCU-UCG-UUA-UCC-UUG 3'
A) met-arg-glu-arg-glu-arg
B) met-ser-leu-ser-leu-ser
C) met-ser-ser-leu-ser-leu
D) met-glu-arg-arg-glu-leu
E) none of the above
Give this one a try later!
egg and thus the Drosophila embryo?
A) homeotic genes
B) segmentation genes
C) egg-polarity genes
D) morphogens
Give this one a try later!
, C) egg-polarity genes
What would the anticodon be for a tRNA that transports
phenylalanine to a ribosome?
A) TTT
B) UUU
C) CCC
D) AAA
E) none of the above
Give this one a try later!
Which of the following statements about the DNA in one of your brain cells is true?
A) most of the DNA codes for protein
B) the majority of genes are likely to be transcribed
C) each gene lies immediately adjacent to an enhancer
D) it is the same as the DNA in one of your heart cells
E) many genes are grouped into operon-like clusters
Give this one a try later!
D) it is the same as the DNA in one of your heart cells
,The protein of the bicoid gene in Drosophila determines the _____ of the embryo
A) anterior-posterior axis
B) anterior-lateral axis
C) posterior-dorsal axis
D) posterior-ventral axis
Give this one a try later!
A) anterior-posterior axis
Gene function can be determined by disabling the gene using
A) in vitro mutagenesis
B) reverse transcriptase- polymerase chain reaction
C) in situ hybridization
D) nuclear transplantation
E) none of the above
Give this one a try later!
A) in vitro mutagenesis
CAP is said to be responsible for positive regulation of the lac operon because _____.
A) CAP binds cAMP
B) CAP binds to the CAP-binding site
C) CAP prevents binding of the repressor to the operator
D) CAP bound to the CAP-binding site increases the frequency of transcription
initiation
Give this one a try later!
, D) CAP bound to the CAP-binding site increases the frequency of
transcription initiation
The reason for differences in the sets of proteins expressed in a nerve and a
pancreatic cell of the same individual is that nerve and pancreatic cells contain
different _____.
A) genes
B) regulatory sequences
C) sets of regulatory proteins
D) promoters
Give this one a try later!
C) sets of regulatory proteins
What amino acid sequence will be generated, based on the
following mRNA codon sequence?
5' AUG-UCU-UCG-UUA-UCC-UUG 3'
A) met-arg-glu-arg-glu-arg
B) met-ser-leu-ser-leu-ser
C) met-ser-ser-leu-ser-leu
D) met-glu-arg-arg-glu-leu
E) none of the above
Give this one a try later!
