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Inbreeding increases homozygosity, which can increase the chances of the expression of deleterious or beneficial recessive alleles and therefore has the potential to either decrease or increase the fitness of the offspring. Depending on the rate of inbreeding, natural selection may still be able to eliminate deleterious alleles. [68]
2- Figures of fertility rates by country and their ranking are based on single referenced sources, from organizations that investigate demographic issues. In several instances, they do not correspond with other sources, such as other organizations and sources that are referenced in the individual demographics by country, which can be accessed ...
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
In this article, we will be taking a look at the 25 countries with highest fertility rates. To skip our detailed analysis, you can go directly to see 10 Countries With Highest Fertility Rates.
The infant mortality rate is the number of deaths of infants under one year old per 1,000 live births. This rate is often used as an indicator of the level of health in a country. The infant mortality rate of the world in 2019 was 28 according to the United Nations [4] and the projected estimate for 2020 was 30.8 according to the CIA World ...
See International Classification of Diseases (ICD-10). The global rate is 224 maternal deaths per 100,000 live births in 2020 (latest available year for some countries). [ 1 ]
In this article, we will be taking a look at the 25 countries with highest life expectancy. To skip our detailed analysis, you can go directly to see 10 Countries with Highest Life Expectancy. In ...
In Finland about one in five persons carries a gene defect associated with at least one Finnish heritage disease, and about one in 500 children born is affected. [4] Most of the gene defects are autosomal recessives , so that if both the mother and father carry the same defect, the chance that their child will have the associated disease is 1 in 4.