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Genetic drift, also known as random genetic drift, allelic drift or the Wright effect, [1] is the change in the frequency of an existing gene variant in a population due to random chance. [ 2 ] Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation . [ 3 ]
It can also be transmitted to a newborn during passage through the birth canal if the mother has an untreated genitourinary infection. Given the high rate of asymptomatic infection, it is recommended that pregnant women be tested for gonococcal infection prior to birth. [ 7 ]
Syphilis is an STI caused by a bacterium. Untreated, it can lead to complications and death. [67] Clinical manifestations of syphilis include the ulceration of the uro-genital tract, mouth or rectum; if left untreated the symptoms worsen.
Trichomoniasis is a sexually transmitted infection (STI) most often spread by vaginal, oral, or anal sex. [1] It can also spread through genital touching (manual sex). [1] People who are infected may spread the disease even when symptoms are not present. [2]
Both genetic drift and genetic draft are random evolutionary processes, i.e. they act stochastically and in a way that is not correlated with selection at the gene in question. Drift is the change in the frequency of an allele in a population due to random sampling in each generation. [9]
HIV is a retrovirus, which means it can integrate its genetic material into your cells’ DNA. As cells reproduce, the HIV DNA inside replicates fast and makes mistakes, creating mutations that ...
If left untreated, chlamydia in men can spread to the testicles causing epididymitis, which in rare cases can lead to sterility if not treated. [15] Chlamydia is also a potential cause of prostatic inflammation in men, although the exact relevance in prostatitis is difficult to ascertain due to possible contamination from urethritis.
Reproductive tract infection (RTI) are infections that affect the reproductive tract, which is part of the reproductive system.For females, reproductive tract infections can affect the upper reproductive tract (fallopian tubes, ovary and uterus) and the lower reproductive tract (vagina, cervix and vulva); for males these infections affect the penis, testicles, urethra or the vas deferens.