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Natural selection can only act upon a certain trait if the trait is?
heritable
what states that only one parental allele for each trait is included in a sex cell?
eather a. Law of Segregation c. Law of Dominance b. Law of Independent Assortment d. Law of Heritability
Is the gene the DNA code for a certain trait?
no it isn't
Two alleles for a certain trait are passed to an individual. what terms refers to the trait that will show up in the individual?
Dominant
What does it mean that an organism is homozygous recessive for a trait?
That organism has two recessive alleles for that trait, one from each parent. It will display the recessive trait.
In order to estimate trait heritability researchers are most likely to make use of?
twin studies
What is a statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group?
Heritability is the statistical estimate of the proportion of the total variance in a trait that is attributed to genetic differences among individuals within a group. It provides a way to quantify the extent to which genetic factors contribute to individual differences in a specific trait within a population.
Is a statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group.?
Heritability
What is the estimated influence of genes on a trait called?
heritability
The likelihood of a trait being passed of from parent to offspring?
heritability.
The current estimate of heritability of intelligence is?
90
Heritability refers to the extent to which?
trait differences among individuals are attributable to genetic variations.
Given a uniform environment the extent to which trait variation can be attributed to differing genes is called?
Heritability
What is the ability-of trait to be passed down from one generation to the next called?
It's called heritability.
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."
What determines Which traits will be passed on to the next generation?
trait dominance (genotypic relationship between alleles). look up "heritability"
What is the ability of a trait to be passed down from one generation to the next called?
It's called heritability.
