29 Questions
What is the primary function of the TRP operon?
Production of tryptophan
What is the result of high glucose levels on the lac operon?
It turns off the lac operon
What is the term for a set of structural genes controlled by one sensor site?
Gene-battery
What is the name of the operon required for the transport and metabolism of lactose in E. coli?
LAC operon
What is the type of control system depicted in Fig. 86?
Positive transcriptional control
What is the term for the regulation of gene expression at the level of transcription?
Transcriptional control
What is the primary function of transposons?
To move around to different positions in the genome
What is a possible consequence of a transposon inserting itself into a functional gene?
Gene damage
What is a potential problem presented by the presence of a string of identical repeated sequences during meiosis?
Imprecise pairing
What is an example of chromosomal damage that can be caused by transposons?
Double-stranded breaks
What is the role of transposons in mutation?
Causing mutations
What is the main function of N-terminal myristoylation in protein localization?
To act as a conformational localization switch
What is the main function of S-palmitoylation in protein localization?
To permanently anchor the protein to the membrane
What percentage of the entire DNA in a human cell is made up of genes that contain the information codes for making proteins?
1%
What is the main function of S-prenylation in protein localization?
To covalently add a farnesyl or geranylgeranyl group to specific cysteine residues
What is the function of genes in DNA?
To provide instructions for specific proteins
What is the main function of protein cleavage in protein modification?
To play a central role in the modification of protein activity, structure and localization
What is the term for the segments of DNA that do not code for proteins?
Non-coding DNA
What is the structure formed in metaphase chromosomes?
A highly compacted structure
What is the result of processing the inactive proinsulin to the active insulin?
The removal of the C-peptide
What is the function of proteases in protein modification?
To cleave the peptide bonds of proteins
What is the term for the physical appearance of a set of chromosomes?
Karyotype
Where is DNA found in a cell, apart from the nucleus?
Mitochondria
What is the result of unequal crossover in pairing?
Duplication
What is the primary cause of Inborn Errors in Metabolism?
Defects in specific proteins (enzymes)
What is the name of the disorder characterized by the accumulation of substrate behind a block in a metabolic pathway?
Inborn Error in Metabolism
Which of the following is NOT a type of Inborn Error in Metabolism?
Muscular Dystrophy
What is the name of the disease characterized by the accumulation of certain compounds that give urine a maple syrup-like odor?
Maple Syrup Urine Disease
How many types of Inborn Errors in Metabolism are mentioned in the text?
6
Test your understanding of DNA, genes, and chromosomes with this quiz. Learn about the structure and function of DNA in mitochondria and animal cells, and explore the different phases of chromatin and chromosome scaffolding.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
