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What does neutral variation mean?
Genetic diversity that confers no apparent selective advantage.
What is the advantage and disadvantage of variation order?
Takes Time and incurs more cost
What is the advantage and disadvantage of formal instruction or variation order?
Advantage - Straight forward easy to understand fast way of communicate. Disadvantage - No formal record of it people might forget what they were asked for or they might say that it never happened.
How do these selective pressures affect the genetic variation in the population?
Selective pressures can impact genetic variation by favoring certain traits or alleles while reducing the frequency of others in a population. Strong selective pressures can lead to genetic changes over generations as individuals with advantageous traits are more likely to survive and reproduce. Conversely, weak or fluctuating selective pressures may allow for higher genetic variation to persist within a population.
Examples of selective breeding?
Humans use selective breeding, which takes advantage OS nauturally occurring genetic variation in plants, animals, and other organisms, to pass desired traits on to the next generation of organisms.
What are the three types of variation?
The three types of variation are genetic variation, environmental variation, and genotype-environment interaction. Genetic variation refers to differences in DNA sequences among individuals, while environmental variation is differences in traits caused by external factors. Genotype-environment interaction occurs when the effect of genes on traits depends on the environment.
Which describes an advantage of sexual reproduction?
Genetic variation
What would selective breeding be nearly impossible without?
Selective breeding be nearly impossible without a wide variation of species. This is usually done to create a specific breed of animals.
What is an advantage of using the range as a measure of variation?
It is simple to calculate.
Why sexual reproduction is an advantage to a population that lives in a rapidly changing environment?
Sexual reproduction makes use of meiosis, which has the unique property of introducing variation in the offspring by means of recombination. Asexual reproduction, which depends on mitosis, can only rely on mutations as a source of variation. Mutations, however, are rarer and more unpredictable than recombination and are not suited to rapidly create a new variation of the old strain that is specifically more adapted to the current environment.
When is variation most important in evolution?
When the immediate environment changes and stress is put on organisms. Then those who have the variation that will become beneficial in this environment will be reproductively more successful.
What is time selective fading?
time variation of transmission channel due to changes of envirenment and the effect of Doppler to transsmited signal
