Biochemistry Regulation Transcription Steroid Hormones Online Exam Quiz
Biochemistry Regulation Transcription Steroid Hormones GK Quiz. Question and Answers related to Biochemistry Regulation Transcription Steroid Hormones. MCQ (Multiple Choice Questions with answers about Biochemistry Regulation Transcription Steroid Hormones
How do steroid hormones produce their effects in cells?
Options
A : By activating key enzymes in metabolic pathway
B : By binding to intracellular receptors and promoting transcription of specific genes
C : By promoting the degradation of specific m-RNAs
D : By activating translation of certain m-RNAs
Which is an example of a positive regulator?
Options
A : CAP
B : Lac 1 gene
C : Trp operon
D : Met operon
Which is an example of negative regulator?
Options
A : CAP
B : Lac 1 gene
C : Nuclear receptors
D : Phosphorylated STAT proteins
Steroid hormones receptor binds to _____________
Options
A : Hormone response elements in m-RNA
B : Hormone response elements in DNA
C : Hormone response elements in proteins
D : Ribosomes to stimulate translation
Plasma membrane protein predicted to have seen 7 transmembrane helices segment binds __________
Options
A : Progesterone
B : Thyroid stimulating hormone
C : Insulin
D : Follicle stimulating hormone
Which out of the following statements is true about gene regulation in bacteria?
Options
A : Repressor protein blocks transcription by binding to operator sequence
B : Activator proteins bind near promoters and increase the efficiency of transcription
C : Enhancers commonly regulate transcription
D : Genes with related functions are often grouped together and have a single start codon
Which drug is used to terminate early pregnancies?
Options
A : RU486
B : Metformin
C : Glucophage
D : Victoza
Mode of action of steroid hormones involve ______________
Options
A : Stimulation of DNA replication
B : Stimulation of m-RNA transcription
C : Inhibition of protein synthesis
D : Secondary messenger
What is the drug antagonist of estrogen?
Options
A : Tanoxifen
B : Metformin
C : Glucophage
D : Victoza
Steroid regulatory proteins mediate the act by binding at ___________
Options
A : Zinc finger motif
B : Leucine zipper motif
C : Helix turn helix motif
D : Histone helix motif
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