Which of the following techniques is used regularly in the study of genomics?

a. Clones are selected using a vector with two genetic markers.
b. Genes are inserted to produce an antigenic protein from a pathogen.
c. Fluorescent nucleotide bases are sequenced.
d. Defective organs are replaced with those made in animal hosts.

검증된 단계별 안내

Step 1: Understand the context of genomics, which is the study of genomes, including the sequencing, mapping, and analysis of DNA.

Step 2: Review each option to see which technique aligns with genomic studies: (a) involves cloning with vectors and genetic markers, often used in molecular biology but not specifically sequencing genomes.

Step 3: Option (b) describes gene insertion to produce antigenic proteins, which relates more to genetic engineering and vaccine development rather than direct genomic analysis.

Step 4: Option (c) mentions fluorescent nucleotide bases being sequenced, which directly relates to DNA sequencing technology, a core method in genomics for reading the order of nucleotides in DNA.

Step 5: Option (d) involves organ replacement using animal hosts, which is unrelated to genomics and more related to transplantation or regenerative medicine.

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주요 개념

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Genomic Sequencing Techniques

Genomic sequencing involves determining the exact order of nucleotides in DNA. Modern methods often use fluorescently labeled nucleotide bases to read sequences accurately, enabling detailed analysis of genomes. This technique is fundamental in genomics for identifying genes and mutations.

Use of Vectors and Genetic Markers

Vectors are DNA molecules used to transfer genetic material into host cells, often containing genetic markers to select successful clones. While important in molecular biology, this technique is more related to cloning and gene manipulation than direct genomic sequencing.

Recombinant Protein Expression

Inserting genes into host organisms to produce proteins, such as antigenic proteins from pathogens, is a key method in biotechnology and immunology. This process aids vaccine development but is distinct from the core techniques used in genomic sequencing.