The human chromosome 1 is approximately 250 million nucleotides long. In order to reveal the sequence of human chromosome 1, the chromosome is broken up into hundreds of fragments. These fragments are then pieced together in the correct order to generate the long, continuous sequence of nucleotides in the chromosome, a process referred to as:

The process is termed as sequence assembly.

Explanation:

The aligning and merging fragments from a longer sequence of DNA so that the original sequence can be redeveloped is termed sequence assembly in bioinformatics. The process of sequence assembly is essential as the DNA sequence technology fails to read the complete sequence of genomes in one go, and apart from that, it reads small fragments of DNA sequences between the sizes of 20 to 30000 base pairs.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.