Anovulation is when the ovaries do not release an oocyte during a menstrual cycle. Therefore, ovulation does not take place. However, a woman who does not ovulate at each menstrual cycle is not necessarily going through menopause. Chronic anovulation is a common cause of infertility.
A DNA database or DNA databank is a database of DNA profiles. A DNA database can be used in the analysis of genetic diseases, genetic fingerprinting for criminology, or genetic genealogy. DNA databases may be public or private, but the largest ones are national DNA databases.he Australian national DNA database is called the National Criminal Investigation DNA Database (NCIDD). By the start of 2013, it contained 718,462 DNA profiles. The database uses 9 STR locations and a sex gene for analysis.
DNA digital data storage. DNA digital data storage refers to any process to store digital data in the base sequence of DNA. This technology uses artificial DNA made using commercially available oligonucleotide synthesis machines for storage and DNA sequencing machines for retrieval. This type of storage system is more compact than current magnetic tape or hard drive storage systems due to the data density of the DNA. Currently it was reported that in 1 gram of DNA 215 petabytes could be stored. It also has the capability for longevity, as long as the DNA is held in cold, dry and dark conditions, as is shown by the study of woolly mammoth DNA from up to 60,000 years ago, and for resistance to obsolescence, as DNA is a universal and fundamental data storage mechanism in biology.