Search results
Results from the WOW.Com Content Network
A mutation in the protein coding region (red) can result in a change in the amino acid sequence. Mutations in other areas of the gene can have diverse effects. Changes within regulatory sequences (yellow and blue) can effect transcriptional and translational regulation of gene expression.
“The more people infected, the more possibility mutations could occur,” said Jennifer Nuzzo, a professor of epidemiology and the director of the Brown University School of Public Health’s ...
This mutation provides some protection against drought and enables people to drink milk without diarrhea, which causes dehydration. [15] Lactase persistence is a rare ability among mammals. [73] Because it involves a single gene, it is a simple example of convergent evolution in humans.
There are other genetic mutations that would likely have to happen for the virus to be transmitted among people. What the research does do is emphasize the need for continued monitoring.
In medicine, study of human genetic variation may be important because some disease-causing alleles occur more often in certain population groups. For instance, the mutation for sickle-cell anemia is more often found in people with ancestry from certain sub-Saharan African, south European, Arabian, and Indian populations, due to the ...
There are several methods, or forms, of mutation that exist including spontaneous mutation, errors during replication and repair, as well as mutation due to environmental effects. [8] These origins of mutations can cause many different types of mutations which influence gene expression on both large and small scales.
Human genetics is the study of inheritance as it occurs in human beings.Human genetics encompasses a variety of overlapping fields including: classical genetics, cytogenetics, molecular genetics, biochemical genetics, genomics, population genetics, developmental genetics, clinical genetics, and genetic counseling.
Mutation accumulation is important because it is one evolutionary cause that increases variation between individuals in sex-ratio behaviour. For example, female wasps can adjust their offspring sex ratios by choosing whether to fertilize an egg because they are haplodiploid .