0
Why does only traits controlled by genes be acted upon natural selection?
Wiki User
∙ 9y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why does recombination between linked genes continued to occur?
New allele combinations are acted upon by natural selection
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.
The phenotype in a population changes after each generation which would most likely be causing this?
organisms compete for shelter
The substance acted upon by an enzyme is called its?
A substrate is the substance acted upon by an enzyme. The enzyme substrate complex is when an enzyme molecule combines with its substrates.
How do scientists know that evolution is true?
The word 'evolution' can be used to indicate two things:The phenomenon of evolution, ie. the changing of allele frequencies in population gene pools (or, as Darwin originally put it, descent with modification).The theory of evolution, ie. the model that explains the diversity of life in terms of what we know about evolution, population genetics, and so on.We know the phenomenon of evolution exists because we can see it happening.As for the theory, there the evidence consists of a multitude of independent lines of observation, all pointing in the same direction:That modern lifeforms stem from a shared ancestry.That an important guiding force of evolution is natural selection.Common ancestry is demonstrated true by the nested hierarchies we find everywhere in life: in morphology, in genetics, in molecular biology, in embryology, in behavioural studies, etc. Basically, these observations show us that every group of organisms inherited its characteristics from a larger, more basal group, with a few unique changed added. This pattern is exactly what we would expect to find if common descent were true. Specific predictions can be made based on the general pattern, which can then be tested against detailed observations. Common ancestry is also demonstrated by the fossils we find: these show a progressing divergence of forms, starting out from the most basal forms, and then diverging towards more modern forms. The fossil record also provides numerous transitional forms, that are representative of intermediaries between basal forms and more modern forms.Natural selection is observed in nature, and can be readily tested in the lab. Not only do we see natural selection acting upon populations now, but we can also make predictions about what we should find in the genomes of various organisms if natural selection had acted upon certain traits in the past - and then test those predictions against the actual genomes.So that's how we know evolution is true.
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.
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.
Why does recombination between linked genes continued to occur?
New allele combinations are acted upon by natural selection
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
Can the trait of rate of development be acted upon by natural selection?
Any morphological and behavioral trait that is in hard inheritance, genetic inheritance. Remember, all organisms are variants and these traits vary from organism to organism and so natural selection selects the best adapted trait among the population of organisms against the immediate environment. The trait that confers better survivability and reproductive success, So, evolution, the change in allele frequency over time in a population of organisms, occurs. Only natural selection confers adaptive change leading to speciation. Epigenetic changes are not adaptive changers.
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.
