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When individuals with an average form of a trait have the highest fitness?
Wiki User
∙ 11y ago
Stabilizing selection
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoStabilizing selection.
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How does fitness relate to natural selection?
Fitness is a measure of the ability to survive and produce more offspring relative to other members of the population a given environment. Natural Selection is is a mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals. So how does these two things relate? But the offspring must survive to contribute to the following generation, so fitness as a generational value. An individual's fitness became defined as to how well that individual contributed its genes to the next generation. The bottom line is still how many successful offspring an individual has.
6 Explain why evolution by natural selection can not occur if the variation in a characteristic does not contribute to differences in fitness?
If there is not reproductive fitness conveyed by a variant trait, then natural selection has nothing to select and nothing to promote into the populational gene pool.
In natural selection what must be true in traits that are passed down through generations?
They must help the organism in it'senvironmentso it may survive andreproduceand pass the trait down. If the trait is undesirable or useless the trait is selected against. Like if the desert was covered in snow, and all the 'prey' animals were out and wondering around. They can see if a 'predator' is coming, because of their orange-light brown color cause it doesn't blend in with the surrounding it isn't goodcamouflage.
A trait that is hidden?
The trait that is hidden is recessive trait.
What causes a branch in a cladogram?
A new trait a derived trait
Which individuals have the greatest fitness in an area where malaria is common?
Individual homozygous for the sickle cell anemia allele
What removes individuals with average trait values creating two populations with extreme traits?
This is known as Directional Selection.
Will shift populations toward a beneficial but extreme trait value?
A process that shifts populations toward a beneficial but extreme trait value is called directional selection. This occurs when individuals with traits at one end of the spectrum have a higher fitness, leading to the gradual increase in frequency of that trait in the population over time.
What types of individuals in a population are represented by the two ends of a bell curve?
The individuals with extreme variations of a trait.
When considered a evolutionary favorable trait for the organism a trait must increase the individuals what?
chicken
What is the ability of a trait to be passes down from one generation to the next called?
Fitness
If the probability of a specific trait will appear in the F generation is 0.25 how many individuals would be expected to show that trait in an f generation of 80 individuals?
20
A trait that occurs in 450 individuals out of a total of 1800 individuals occurs with a probability of?
it is 405
How do you the the phenotype for an individuals trait?
usung a punnett square
How does fitness relate to natural selection?
Fitness is a measure of the ability to survive and produce more offspring relative to other members of the population a given environment. Natural Selection is is a mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals. So how does these two things relate? But the offspring must survive to contribute to the following generation, so fitness as a generational value. An individual's fitness became defined as to how well that individual contributed its genes to the next generation. The bottom line is still how many successful offspring an individual has.
The transgenic crop with the highest acreage is for the trait of?
herbicide tolerance
Three ways natural selection picks a phenotype?
stabilizing selection: when individuals near the center of the curve have a higher fitness than individuals at either end of the cure, keeping the center at its current location but narrows the overall graph directional selection: when individuals at one end of the curve have a higher fitness than individuals at the other end, or middle, causing the entire curve to move as the character trait changes disruptive selection: when individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle, causing the single curve to be cut into two These three types of selection are brought about by natural selection, so whichever one is favored, then the genes evolve in that specific direction. natural selection acts on the genotype, but the results are seen in the phenotype
