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One example of a gene becoming more common in a population is antibiotic resistance in bacteria. When the antibiotics kill the bacteria some have a mutation that makes them resistant. These bacteria then reproduce and over time the species genetic code changes so that they are antibiotic resistant. This is the reason new vaccines are constantly released. The same basic principle works in pesticide resistance of rats.
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Is there any evidence that the traits shared by most of the population is not controlled by a dominant allele explain?
The presence of a dominant allele is not always required to explain common traits in a population. Polygenic inheritance, where multiple genes contribute to a trait, can lead to common traits without a dominant allele. Additionally, environmental factors can also play a significant role in shaping common traits among a population.
Is it true that all of the genes in a population make up the allele frequency of the population?
No, the allele frequency of a population refers specifically to the proportion of different alleles (variations of a gene) for a particular gene within that population, rather than all genes. It is a measure of genetic variation and is calculated as the number of times an allele appears in a population relative to the total number of alleles for that gene. Therefore, while allele frequencies are influenced by the genes present in a population, they do not encompass all genes.
Why do common patterns of genetics control development exist among animals?
They exist because all these genes have descended from the genes of common ancestors.
Are similar genes evidence of common ancestory?
Yes, similar genes are evidence of common ancestry. Genes are passed down from generation to generation, so when organisms share similar genetic sequences, it suggests a shared evolutionary history or common ancestor. This is a fundamental concept in the field of evolutionary biology.
How does population change as a result of natural selection?
Natural selection is not a thing that acts on populations, it is a tendency for harmful genes to not be passed on (die out) and useful variations to thrive and become common.
Why do common patterns of genetic control for development exist in animals?
They exist because all these genes have descended from the genes of common ancestors.
What is the essence of Darwin's theory of evolution?
Darwin's theory outlined natural selection, as one theory within the whole of evolution: those organisms that are better able to survive long enough to reproduce more often, will pass on the genes that result in their offspring surviving longer and reproducing more as well, resulting in that set of genes becoming more common in the population as time passes.
Is there any evidence that the traits shared by most of the population is not controlled by a dominant allele explain?
The presence of a dominant allele is not always required to explain common traits in a population. Polygenic inheritance, where multiple genes contribute to a trait, can lead to common traits without a dominant allele. Additionally, environmental factors can also play a significant role in shaping common traits among a population.
Do genes effect your health?
Yes. For example if cancer if very common in your family, you likely have genes that are more susceptible to it. That's why people say "its hereditary." It means its caused by your genes. If this is hereditary for you, you are more likely to die from cancer.
Why are smaller populations more affected by genetic drift?
Smaller populations are more affected by genetic drift because there are fewer individuals to pass on their genes, leading to a greater chance of random changes in allele frequencies. This can result in certain traits becoming more or less common in the population over time.
Why do common patterns of genetics control development exist among animals?
They exist because all these genes have descended from the genes of common ancestors.
How do the processes of balancing and stabilizing selection contribute to the maintenance of genetic diversity within a population?
Balancing and stabilizing selection help maintain genetic diversity in a population by preserving different versions of genes. Balancing selection favors multiple versions of a gene, preventing any one version from becoming too common. Stabilizing selection keeps the average traits in a population stable, allowing for variation to persist. This diversity is important for a population's ability to adapt to changing environments and resist diseases.
Are similar genes evidence of common ancestory?
Yes, similar genes are evidence of common ancestry. Genes are passed down from generation to generation, so when organisms share similar genetic sequences, it suggests a shared evolutionary history or common ancestor. This is a fundamental concept in the field of evolutionary biology.
Which is an example of biotechnology?
Genetic engineering, where genes are manipulated to create new traits in organisms, is a common example of biotechnology. This can be seen in the development of genetically modified crops or bacteria that produce insulin for medical use.
What are some variations in the zebras population?
In the zebra population there are variation in the stripes. Genes are responsible for variation in their stripes and there are no two zebras that are alike.
How does population change as a result of natural selection?
Natural selection is not a thing that acts on populations, it is a tendency for harmful genes to not be passed on (die out) and useful variations to thrive and become common.
The collection of all the genes in a population is called?
The collection of all the genes in a population is called the gene pool. This gene pool contains all of the genetic variation within a population, which can be passed on to future generations through reproduction.
