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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.
What else can I help you with?
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 is the significance of genetic variation after meiosis?
Genetic variation after meiosis is significant because it leads to the creation of unique offspring with diverse traits. This variation is important for evolution and adaptation to changing environments.
How do stabilizing and disruptive selection differ in terms of their impact on the genetic variation within a population?
Stabilizing selection maintains genetic variation by favoring the average traits, while disruptive selection increases genetic variation by favoring extreme traits.
How does standing genetic variation contribute to the overall genetic diversity within a population?
Standing genetic variation refers to the existing genetic differences within a population. This variation contributes to genetic diversity by providing a pool of different genetic traits that can be passed on to future generations. This diversity helps populations adapt to changing environments and increases their chances of survival.
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.
What contributes to genetic variation?
The patterns of nitrogenous bases in DNA encoded on the genes creates genetic variation.
Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
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.
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
