Final Answer:
These sections of DNA include the 13 unique markers that are analyzed and archived in the CODIS FBI database is, c. Variable number tandem repeats (VNTRs)
Step-by-step explanation:
The sections of DNA that include the 13 unique markers analyzed and archived in the CODIS (Combined DNA Index System) FBI database are known as Variable Number Tandem Repeats (VNTRs).
a. Repeated genes - While genes can contain repeated sequences, the specific term associated with the CODIS markers is VNTRs.
b. Alternative alleles - This term refers to different versions of a gene, but it doesn't specifically describe the markers analyzed in CODIS.
c. Variable number tandem repeats (VNTRs) - These are short, repeating DNA sequences that vary in length among individuals and are used as genetic markers in forensic DNA analysis.
d. Haplogroups - Haplogroups are classifications used in the study of genetics, particularly in the context of mitochondrial DNA or Y-chromosomal DNA, and are not directly related to the CODIS markers.
In summary, the correct answer is c. Variable number tandem repeats (VNTRs).