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Prophase 1 (APEX)
Raven Gray
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Molecules responsible for hereditary and variation of organisms?
DNA is responsible in most organisms, but RNA is responsible for heredity and variation of a lot of viruses.
Why is crossing over so important?
It increases genetic variation in organisms
Why genetic variation is a benefit to a population?
Genetic variation allows a population to adapt to a changing environment.
What is heritable variation?
Heritable variation is the variation in characteristics caused by genetic factors.
What would decrease genetic variation in a population?
When there is low genetic variation in a population the species produced are unlikely to withstand diseases.
Which is responsible for genetic variation mitosis or meiosis?
Meiosis is responsible for genetic variation
Genetic variation is a necessary condition of which process?
Genetic variation is one of the conditions required for Natural Selection to occur.
Who first described the process of genetic variation?
The first description of the process of genetic variation could probably be attributed to Charles Robert Darwin, who is the originator of the Theory of Evolution.
Molecules responsible for hereditary and variation of organisms?
DNA is responsible in most organisms, but RNA is responsible for heredity and variation of a lot of viruses.
Which process is a cause of variation in a species?
Sexual Reproduction Genetic mutation
What is One consequence of genetic drift is?
Loss of genetic variation(:Novanet:)
What also contributes to genetic variation?
The two main sources of genetic variation are gene shuffling and mutations. A mutation is a process wherein the structure of a gene is altered.
How does meiosis create variation?
Meiosis creates genetic variation through the production of 4 haploid daughter cells, each with random genetic combinations. Meiosis also creates genetic variation through the process called crossing over, where chromosome segments are exchanged.
What two factors introduce genetic variation during the process of meiosis?
The two factors that introduce genetic variation during the process of meiosis are independent assortment and chromosomal crossover. These occur during prophase 1 and anaphase 1 of meiosis.
What are the steps of meiosis directly responsible for some of the genetic variation seen in a given population?
Independent assortment, crossing over.
What process during meiosis leads to genetic variation?
DNA organizes into chromosomes within the nucleus
What is a source of genetic variation in organisms?
Human recombination is a significant source of genetic variation.
