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Some mutations are due to errors in DNA replication. During the replication process, DNA polymerase chooses complementary nucleotide triphosphates from the cellular pool. Then the nucleotide triphosphate is converted to a nucleotide monophosphate and aligned with the template nucleotide. A mismatched nucleotide slips through this selection process only onece per 100,000 base pairs at most. The mismatched nucleotide causes a pause in replication, during which it is excised from the daughter strand and replaced with the correct nucleotide. After this so-called proofreading has occurred, the error rate is only one per 1 billion base pairs.
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What is the ultimate source of genetic variation and the basis for the diversity of life on earth?
Mutations are the ultimate source of genetic variation, providing the raw material for evolution. They can occur spontaneously during DNA replication, resulting in different genetic sequences. This genetic diversity is the basis for the wide array of traits and characteristics seen in living organisms on Earth.
How often in the life of a cell does replication occur?
Cell replication can occur at different rates depending on the cell type. In general, cell replication can range from a few hours to a few days. For example, skin cells replicate every few weeks, while intestinal cells replicate every few days.
What binds to the prokaryotic chromosome to start DNA replication?
Regulatory proteins bind to the prokaryotic chromosomes to start DNA replication.
Is it easy for breeders to produce mutants with desirable mutations?
With luck and perseverance, however, breeders can produce a few mutants-individuance with mutations-with desirable characteristics that are not found in the original population.
Few chromosome mutations are passed on to the next generation because?
few chromosome mutations are beneficial and increase the chances of survival and reproduction, so they are less likely to be passed on. Additionally, many chromosome mutations are detrimental and result in decreased fitness, making individuals less likely to successfully reproduce. Lastly, some chromosome mutations can cause infertility or sterility, preventing affected individuals from passing on their genes to the next generation.
What is the ultimate source of genetic variation and the basis for the diversity of life on earth?
Mutations are the ultimate source of genetic variation, providing the raw material for evolution. They can occur spontaneously during DNA replication, resulting in different genetic sequences. This genetic diversity is the basis for the wide array of traits and characteristics seen in living organisms on Earth.
Why is it easy for a virus to mutate?
Viruses mutate easily because they have a high mutation rate due to errors in their replication process. Additionally, viruses have short generation times which allows them to quickly accumulate mutations. Mutations can help viruses evade the immune system, adapt to new hosts or environments, and become more infectious.
Which is more likely to develop adaptation to a changing ecosystem?
A population with few mutations will have more room in there genes to do mutations
Are genetic mutations always harmful to the individual?
Genetic mutations are not always harmful to the individual. A few may be beneficial.
Which is more likely to develop adaptations to a changing ecosystem a population that often has many mutation or a population that has few mutations?
A population with many mutations.
Where can one purchase DVD replication in bulk?
One can purchase DVD replication in bulk from the following sources: Easy Replication, Digi DVD, Disc Makers, Nationwide Disc, CDROM 2 GO, DVD Copying, to name a few.
What binds to the prokaryotic chromosome to start DNA replication?
Regulatory proteins bind to the prokaryotic chromosomes to start DNA replication.
Is it easy for breeders to produce mutants with desirable mutations?
With luck and perseverance, however, breeders can produce a few mutants-individuance with mutations-with desirable characteristics that are not found in the original population.
How many cats have ears?
All of them, with the possible exception of a very few (probably non-viable) mutations.
Why do variations occur?
Variation or traits are due to changes in the genes. The genes are found in the DNA and when they replicate, the process doesn't always work correctly. We have called these mutations. A few are positive for the species, some are negative (and are not passed on) and a few do not make any change at all.
How replication differ from translation?
well, since the previous person doesnt have a single working cell in his body, ill help u out Transcription- process that converts an mRNA message into a polypeptide. Translation- process of copying a sequence of DNA to produce a complementary strand of RNA. replication- process in which the RNA is duplicated
What characteristics of a population would most likely indicate the lowest potential for evolutionary change in that population?
Asexual reproduction and few mutations
