Multiple Choice
Which of the following is a method scientists use to overcome the limitations of DNA microarray technology when studying gene interactions?
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3. Extensions to Mendelian Inheritance
Overview of interacting Genes
Multiple Choice
In genetics, what is a locus?
A
A type of mutation that changes the sequence of DNA
B
The specific physical location of a gene or DNA sequence on a chromosome
C
The process by which genetic information is copied from DNA to RNA
D
A protein that regulates gene expression
Verified step by step guidance1
Understand that in genetics, a 'locus' refers to a specific place or position on a chromosome.
Recognize that each gene or DNA sequence occupies a particular locus, which helps in identifying its physical location within the genome.
Differentiate 'locus' from other genetic terms such as mutations (which are changes in DNA sequence), transcription (the process of copying DNA to RNA), and regulatory proteins (which influence gene expression).
Recall that the locus is not about the function or type of gene product but strictly about the gene's position on the chromosome.
Conclude that the correct definition of a locus is the specific physical location of a gene or DNA sequence on a chromosome.
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