This type of sequences is found tens of thousands or millions of times in the genomeSelect one:a. all of the aboveb. highly repetitive sequencesc. unique or non-repetitive sequencesd. moderately repetitive sequences

b. Highly repetitive sequences

Explanation:

As the name suggests, highly repetitive sequences are the sequence in the linear chain of DNA that are repeated many times in the whole genome. Though these sequences occur in abundance in the genome but it is interesting to note that these do not code for any protein. These sequences can be short as of 5-100 nucleotides and are repeated for thousands times in a single stretch of genome and include the satellite DNA. The longer sequences can be 150-300 nucleotides and include transposons and Alu sequences.