Multiple Choice
Which statement is true regarding the development of pyrimethamine resistance in malaria parasites?
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16. Microbial Genetics
Introduction to Microbial Genetics
Multiple Choice
A scientist studying the sequence of nucleotides in the rRNA of a bacterial species is working on which of the following?
A
Molecular phylogenetics
B
Gram staining techniques
C
Antibiotic resistance testing
D
Bacterial fermentation pathways
Verified step by step guidance1
Step 1: Understand the key terms in the problem. The scientist is studying the sequence of nucleotides in the rRNA of a bacterial species. rRNA stands for ribosomal RNA, which is a component of the ribosome involved in protein synthesis.
Step 2: Recognize that analyzing nucleotide sequences in rRNA is commonly used to determine evolutionary relationships among organisms. This approach compares genetic material to infer how species are related.
Step 3: Identify that 'Molecular phylogenetics' is the field that uses molecular data, such as rRNA sequences, to study evolutionary relationships and construct phylogenetic trees.
Step 4: Differentiate this from other options: Gram staining is a technique to classify bacteria based on cell wall properties, antibiotic resistance testing assesses bacterial susceptibility to drugs, and bacterial fermentation pathways study metabolic processes.
Step 5: Conclude that since the scientist is analyzing rRNA sequences to understand relationships, the correct field of study is Molecular phylogenetics.
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