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mutation
Vincent Schneider
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What will make population have more genetic variation?
mutation
What does Variations in genotype through an entire population describes?
It is genetic diversity, next time figure it out yourself. Pay more attention in school you dummy!
Why are populations more genetically diversed than the individuals that make them?
Genetic variation is expressed in genes which form chromosomes. Thus any individual in a population of breeding animals can only 'hold' the gene variations that can fit into that individuals chromosomes, while the number of chromosomes in the population is the number found in the individual * the number of individuals comprising the population, a much greater space for 'holding' variations in genes.
What increases genetic variations?
A large population increases genetics variation. Mutation will also increase genetics variation.
What causes many endangered species that are now found only in zoos to have very little genetic variations?
Founder effect refers to the loss of genetic variation when a new colony is established by a very small number of individuals from a larger population. As a result of the loss of genetic variation, the new population may be distinctively different.Bottleneck effect is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing, and the population is reduced by 50% or more, often by several orders of magnitude.Population bottlenecks increase genetic drift, as the rate of drift is inversely proportional to the population size.They also increase inbreeding due to the reduced pool of possible mates.
What are the four major points of the theory of natural selection?
1. Overproduction - more offspring are born than survive 2. Genetic Variation - there is variation in the population 3. Struggle to Survive - organisms with suitable variations will survive and reproduce 4. Differential Reproduction - suitable variations are passed on to offspring
Is genetic change desirable or not?
Genetic change is desirable in order to have an abundance of diversity within a population. This makes the population less susceptible to disease and illness, making the population more resilient.
What are the four forces of human evolution?
The four forces of human evolution are mutation, genetic drift, gene flow, and natural selection. Mutation introduces new genetic variations, genetic drift refers to random changes in gene frequencies within a population, gene flow involves the transfer of genetic material between populations, and natural selection is the process by which certain traits become more common in a population due to their advantage for survival and reproduction.
What type of reproduction produces more variations within a population sexual or asexual?
Sexual.
Stabilizing selection results in more or less genetic diversity?
Stabilizing selection results in less genetic diversity in a population.
What is the difference between the gametes produced without corssing over and the ones produced with crossing over?
Gametes produced by crossing over are called non parental and possess more genetic variations as compared to those produced with out crossing over which possess much less genetic variations.
How would genetic drift affect a population in genetic equilibrium?
because genetic modifications have more allieles than the first and second generation youre welcome:)
