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My answer off the top of my head is that the male sperm cell carries half the chromosomes (they contain all your genetic information) and the female egg carries the other half. When they join to create a zygote, you will inherit those chromosomes.
There are different types of alleles (this is a different type of the same gene). One type is Homozygous where, in the example of the allele that lets you roll your tongue, is Rr. A heterozygous is RR or rr. You can inherit any of these.
However, if you should inherit the rr gene, then you will not be able to roll your tongue. You will still carry the gene. So if you create a child then he/she can become a carrier for the gene (Rr).
They can then create a person who can roll their tongue if the other person can or is a carrier. There are special tables to determine if your child will have it or not.
A good example of a carrier disease is Sickle-Cell Disease. Normal red blood cells are shaped like o's. Sickle-Cell infected people's red blood cell's are shaped like crescent moons.
A carrier or someone infected with Sickle-Cell Disease are immune to malaria because Malaria cannot cope with the mutated cells of the subject. This is why a lot of African people have Sickle-Cell disease.
Genetic variation refers to the differences in DNA sequences among individuals within a population or species. This variation can include differences in genes, alleles, and chromosomal arrangements, leading to the uniqueness of each individual's genetic makeup. It is crucial for natural selection and evolution as it allows for adaptability to changing environments.
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What process is responsible for genetic variation?
The process responsible for genetic variation is genetic recombination, which occurs during meiosis when genetic material is exchanged between homologous chromosomes. Mutations, which are changes in the DNA sequence, also contribute to genetic variation.
What mechanism is not a mechanism for genetic variation?
Mechanisms such as gene flow, mutation, genetic drift, and natural selection are all considered mechanisms for genetic variation. Non-genetic mechanisms, such as Lamarckian inheritance or acquired characteristics, are not considered valid mechanisms for genetic variation in the traditional sense.
What would decrease genetic variation in a population?
Inbreeding, genetic drift, and natural selection can decrease genetic variation in a population by reducing the number of different alleles present. These processes can lead to a loss of genetic diversity and increase the prevalence of certain genetic traits within the population.
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.
What are the benefits of genetic variation and what are the potential problem that it can cause?
Genetic variation can increase a population's adaptability to changing environments, enhance resistance to diseases, and contribute to overall biodiversity. However, high levels of genetic variation can also lead to increased risk of certain genetic disorders and diseases, as well as reduced fitness due to inbreeding.
What is One consequence of genetic drift is?
Loss of genetic variation(:Novanet:)
What is a source of genetic variation in organisms?
Human recombination is a significant source of genetic variation.
Relate genetic variation and mutations to each other?
mutations cause genetic variation, and vice-versa. If there is a genetic variation (or lack of one), then this can effect the severity of the mutation.
Which of these is necessary for natural selection to occur genetic engeneering genetic variation asexual reproduction or enviormental stability?
Genetic variation is necessary for natural selection to occur. This variation provides the raw material for differential survival and reproduction, which drives the process of natural selection. Without genetic variation, there would be no differences for natural selection to act upon.
Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
What contributes to genetic variation?
The patterns of nitrogenous bases in DNA encoded on the genes creates genetic variation.
Do you no two examples of Inherited variation?
genetic and environmental variation
What process is responsible for genetic variation?
The process responsible for genetic variation is genetic recombination, which occurs during meiosis when genetic material is exchanged between homologous chromosomes. Mutations, which are changes in the DNA sequence, also contribute to genetic variation.
Genetic variation is a necessary condition of which process?
Genetic variation is one of the conditions required for Natural Selection to occur.
What mechanism is not a mechanism for genetic variation?
Mechanisms such as gene flow, mutation, genetic drift, and natural selection are all considered mechanisms for genetic variation. Non-genetic mechanisms, such as Lamarckian inheritance or acquired characteristics, are not considered valid mechanisms for genetic variation in the traditional sense.
What do stabilization selection and disruptive selection have in common?
They both decrease genetic variation. Stabilizing selection and disruptive selection reduce genetic variation
What id genetic variation?
Genetic Variation is a measure of the genetic differences there are within populations or species. For example, a population with many different alleles at a locus may be said to have a lot of genetic variation at that locus. Genetic variation is essential for natural selection to operate since natural selection can only increase or decrease frequency of alleles already in the population
