What is risk allele frequency?

What is risk allele frequency?

risk allele: in the context of a disease, this is the allele that confers a risk of developing the disease. Most of the time, risk allele = minor allele, as most people will not carry the risk allele.

How do you find the frequency of a dominant and recessive allele?

1 = p2 + 2pq + q2 P and q each represent the allele frequency of different alleles. The term p2 represents the frequency of the homozygous dominant genotype. The other term, q2, represents the frequency of the homozygous recessive genotype.

What are the three main sources of genetic variation?

For a given population, there are three sources of variation: mutation, recombination, and immigration of genes. However, recombination by itself does not produce variation unless alleles are segregating already at different loci; otherwise there is nothing to recombine.

What decreases genetic variation?

Sources of Decreased Variation Mutation, recombination, and gene flow all act to increase the amount of variation in the genotypes of a given population. There are also forces at work that act to decrease this variability.

What is chance cause of variation?

Chance cause :A process that is operating with only chance causes of variation present is said to be in statistical control. In other words, the chance causes are an inherent part of the process. Assignable cause :assignable cause is an identifiable, specific cause of variation in a given process or measurement.

Is Skin Colour a continuous variation?

Continuous variation Some of these differences vary over a whole range, for example the height, skin colour and weight of people. We call this type continuous variation.

Which eye Colour is most attractive?

Hazel eyes have also been voted as one of the most attractive eye colours and can, therefore, be argued to have the best of both worlds, health and beauty. Green eyes are incredibly rare, which may be the reason as to why some believe this to be the most attractive eye colour.

Are green or GREY eyes rarer?

The production of melanin in the iris is what influences eye color. More melanin produces a darker coloring, while less makes for lighter eyes. Green eyes are the rarest, but there exist anecdotal reports that gray eyes are even rarer. Eye color isn’t just a superfluous part of your appearance.

Is Hazel the rarest eye color?

Are Hazel Eyes Rare? However, hazel is definitely one of the rarer eye colors. It’s estimated that only about 5% of the population has hazel eyes. Brown is the most common eye color, and roughly 55% to 80% of the population has brown eyes.