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total variation in the phenotye (IQ, introvert) that can attribute to genetic rather thatn environmental variation in the population, it is ALWAYS about groups NEVER about specific individual like Me or YOU :-)

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Q: What is heritability coefficient?
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What genetic characteristics come from the bull?

Half the genes a calf gets is from his sire, and the other half from his dam. Some genes will be more dominant than others, depending on which of his parents has the dominant gene, and some, like carcass characteristics from his sire, are more heritable than others. Often a bull that has better genetics than the rest of the cowherd will produce calves that have slightly better genetics than their dams. Some of the more heritable traits that a bull's offspring can receive from him, if he's better quality than the cowherd, are: Lean/bone ratio (60% heritability) Lean percentage (55% heritability) Mature cow weight (50% heritability) Carcass grade (45% heritability) Thickness of outside carcass fat (45% heritability) Dressing percentage (40% heritability) Marbling (40% heritability) Ribeye area (40% heritability) Yearling weight (feedlot)(40% heritability) Yearling weight (pasture (35% heritability) Efficiency of gain (35% heritability) Birth weight (30% heritability) Post-weaning gain (30% heritability) Tenderness (meat quality) (30% heritability) Carcass weight (25% heritability) Weaning weight (25% heritability) Calf survival (10% heritability) Calving interval (10% heritability) Calving ease (10% heritability) The definition of heritability is: "The proportion of the differences among cattle, measured or observed, that is transmitted to the offspring. Heritability varies from 0 to 1. The higher the heritability of a trait, the more accurately does the individual performance predict breeding value and the more rapid should be the response due to selection for that trait."


Is Heritability of all traits the same?

No, heritability varies for different traits. While some traits have a high heritability (such as height or intelligence), others have a lower heritability (such as personal preferences or habits). The heritability of a trait depends on how much of the variation in that trait can be attributed to genetic differences among individuals in a specific population.


Given a uniform environment the extent to which trait variation can be attributed to differing genes is called?

Heritability


What is the maximum value for heritability?

Heritablility values range from 0-1 so the maximum value of heritability would be 1.


The current estimate of heritability of intelligence is?

90


What are the strengths and weaknesses of some of the methods used to determine heritability in humans?

Heritability is the amount of variance in observed demeanors among people that can be explicated by genetics.


What would contribute to an overestimation of heritability?

One of manyÊthings that could contribute to incorrect or overestimation of heritability would be the infuence of environment factors including geographical location.


Difference between broad sense heritability and narrow sense heritability?

Broad-sense heritability includes all sources of genetic variance, both additive and non-additive, in a population, while narrow-sense heritability only considers additive genetic variance. Narrow-sense heritability is a more precise measure of the proportion of phenotypic variance that can be attributed to additive genetic effects.


What is the estimated influence of genes on a trait called?

heritability


Why is high heritability more desirable than low heritability?

High heritability indicates that genetic factors play a significant role in determining a trait, making it more predictable and potentially easier to manipulate in breeding programs or genetic studies. In contrast, low heritability suggests that environmental factors have a larger influence, leading to less consistency across generations and making it harder to select for or study specific traits.


How is heritability related to evolution?

Heritability is the proportion of variation in a trait within a population that can be attributed to genetic differences. This is important in evolution because traits with high heritability can be passed down from one generation to the next, allowing for natural selection to act on these traits over time, leading to evolutionary changes in a population.


The likelihood of a trait being passed of from parent to offspring?

heritability.