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Traits controlled by genes are subject to natural selection because they are heritable and can be passed on to offspring, allowing successful variations to increase in frequency over generations. Traits that are not controlled by genes, such as behavior or learned characteristics, are not directly influenced by genetic inheritance and therefore cannot be directly acted upon by natural selection.
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How does Mendel theory of inheritance support Darwins theory of natural selection?
By giving the theory a mechanism of inheritance. Particulate inheritance, where each parent contributes chromosomes ( Mendel dod not know what a chromosome was and called genes " factors " ) that contain separate alleles that contribute to the progeny's traits. Darwin's idea of " blending " inheritance was completely wrong.
How can mutations enable the evolution of a new species accur?
Mutations introduce genetic diversity within a population, which can lead to variations in traits. These variations can be acted upon by natural selection, allowing individuals with beneficial mutations to survive and reproduce, eventually leading to the emergence of a new species over time through the accumulation of genetic changes.
What does The modern theory of evolution states that a basis for variation within a species is provided by?
The modern theory of evolution states that variation within a species is provided by genetic mutations and genetic recombination during sexual reproduction. These processes create differences in traits among individuals, which can be acted upon by natural selection to drive evolutionary change.
How does mutation and natural selection operate together in the process of evolution?
Under natural selection, not all genes are successful, but those which are will progress to the next stage of selection. Mutations introduce new genetic information to an organism's genetic code, providing more genotypes to create more phenotypes, which can be acted on and potentially more suitable ones to be selected.
How did the modern study of genetics at that Darwin's original theory of evolution?
The modern study of genetics has provided evidence to support and refine Darwin's original theory of evolution. Discoveries in genetics have shown that variations in genes can lead to variations in traits within populations, which can be acted upon by natural selection, ultimately driving evolution. This integration of genetic principles with evolutionary theory has provided a more comprehensive understanding of how species change over time.
Is it that traits that are controlled by genes can be acted upon by natural selection?
Yes.
Why can only controlled traits by genes be acted upon by natural selection?
because there are alot of peters iin the world like obama
Is it true that only traits that are learned can be acted upon in natural selection?
all i know is that its False
Why can only traits controlled by genes be acted upon by natural selction?
Because populations evolve. If their was no hereditary transfer of traits by germ line genes then there would be no true selection. Acquired traits, such as a personal habit, are invisible to selection. Somatic mutations that could be beneficial are also invisible to selection. Selection only acts on what is, germ lines in individuals, transmissible to future generation and the gene pool.
What level of organization is acted upon by natural selection?
The individual or his/her (assuming a sexed species) genes. Still a bit of a ' bone of contention in biology between these two levels; the gene and the individual. The only truly marginalized position as to ' target ' of selection is the group.
Why can only traits controlled by genes upon by natural selection?
I'm assuming you meant "Why can only traits controlled by genes be acted upon by natural selection?" Genes hold all of the information that makes up something physically and to some extent psychological and that is what is past down to the offspring. That means any traits acquired can not be past down for example knowing how to hold a pen is not something that is stored in genes it is stored in memory therefore it can not be genetically passed down. If one day I were to get into a battle with a swords master I would win the battle because the pen is mightier then the sword. That would save my life and allow me to pass on my genes, but even though it played a role in natural selection by allowing me to live instead of the sword master it is not stored in the genes and therefore is not genetically passed down to the offspring.
Why can only traits controlled by genes be natural selection?
dBecause the animal is adapted to its environment. :)
Suppose the climate in an area becomes much drier than it was before what kinds of variations in the areas plants might be acted on by natural selection?
without variation's, all the members of a species would have the same traits.
Which is not a way in which natural selection affects the distributions of phenotypes?
Mutation is not a way in which natural selection affects the distributions of phenotypes. Mutations introduce new genetic variations, which can then be acted upon by natural selection to influence the distribution of phenotypes within a population.
Why can only traits controlled by genes by acted upon by natural selection?
I'm assuming you meant "Why can only traits controlled by genes be acted upon by natural selection?" Genes hold all of the information that makes up something physically and to some extent psychological and that is what is past down to the offspring. That means any traits acquired can not be past down for example knowing how to hold a pen is not something that is stored in genes it is stored in memory therefore it can not be genetically passed down. If one day I were to get into a battle with a swords master I would win the battle because the pen is mightier then the sword. That would save my life and allow me to pass on my genes, but even though it played a role in natural selection by allowing me to live instead of the sword master it is not stored in the genes and therefore is not genetically passed down to the offspring.
What kinds of variations in the area's plants might be acted on by natural selection.?
Selection and Environmental change
Could natural selection work on a trait that i not heritable?
Assume you have a population of people of various genetically influenced heights; they all varied in height potential. They all were raised in an environment that was deprived of basic nutrients and all were somewhat stunted in growth. A person that would have been tall in a normal environment passes on those genes for tallness in his deprived -of -nutrients environment, so his sons/daughters, if properly feed, would grow tall. So you see, natural selection must work on the genetic/individual variation and not variations that are not inherited.
