Biol 4003 Exam 1 Questions with
complete solutions passed
Which of the following genotypes would exhibit constitutive expression of a functional lacZ
gene?
A. I+P+O+Z+Y+
B. I-P+O+Z-Y-
C. I+P+OcZ-Y-
D. I-P+O+Z+Y- - ANS ✔✔D
T or F: The process of attenuation that is involved in regulating expression of genes important
for tryptophan biosynthesis in E. coli is likely important for regulation of tryptophan
biosynthesis in human too. - ANS ✔✔False
T or F: Peptide hormones typically cause changes in gene expression by binding with
membrane-bound receptors - ANS ✔✔True
Transcription factors contain multiple domains. Which of the following are not typically found in
transcription factors.
A. DNA binding activity
B. Kinase activity
C. Transcription activation domains - ANS ✔✔B.
Which of the following factors are not associated with increased risk for cancer?
A. Exposure to high levels of ionizing radiation
B. Inheritance of a mutant allele of a tumor suppressor gene from a parent
complete solutions passed
Which of the following genotypes would exhibit constitutive expression of a functional lacZ
gene?
A. I+P+O+Z+Y+
B. I-P+O+Z-Y-
C. I+P+OcZ-Y-
D. I-P+O+Z+Y- - ANS ✔✔D
T or F: The process of attenuation that is involved in regulating expression of genes important
for tryptophan biosynthesis in E. coli is likely important for regulation of tryptophan
biosynthesis in human too. - ANS ✔✔False
T or F: Peptide hormones typically cause changes in gene expression by binding with
membrane-bound receptors - ANS ✔✔True
Transcription factors contain multiple domains. Which of the following are not typically found in
transcription factors.
A. DNA binding activity
B. Kinase activity
C. Transcription activation domains - ANS ✔✔B.
Which of the following factors are not associated with increased risk for cancer?
A. Exposure to high levels of ionizing radiation
B. Inheritance of a mutant allele of a tumor suppressor gene from a parent
