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Edited answer:
During prophase I of meiosis pairing among homologous chrosomes takes place. This is followed by crossing over. The recessive and dominant genes get interchanged during chiasma formation and such interchanged genetic material get separated in to different cells during mtaphase I. Hence, prophase I and metaphase I cause genetic variations in the male and female gametes. On randum mating among these gametes, genetic variation in the offsring are caused.
A large population increases genetics variation. Mutation will also increase genetics variation.
Genetic variation is one of the conditions required for Natural Selection to occur.
The introduction of animals into a breeding population that are unrelated will increase genetic variation.
If a population dwindles, there is low genetic variation and a species may risk extinction.
Meiosis is responsible for genetic variation
prophase I of meiosis. This process involves the exchange of genetic material between non-sister chromatids, resulting in genetic variation among gametes.
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.
Meiosis is a type of cell division that produces gametes, such as eggs and sperm. The steps of meiosis include meiosis I (prophase I, metaphase I, anaphase I, telophase I) and meiosis II (prophase II, metaphase II, anaphase II, telophase II). During meiosis I, homologous chromosomes pair up and exchange genetic material, leading to genetic variation. In meiosis II, sister chromatids separate to form haploid daughter cells.
The four parts of mitosis are prophase, metaphase, anaphase, and telophase. In prophase, the genetic material condenses into chromosomes. During metaphase, the chromosomes line up along the metaphase plate. Anaphase involves the separation of sister chromatids, and in telophase, the nuclear membrane reforms and the chromosomes decondense.
The similar basic steps between mitosis and meiosis include the stages of prophase, metaphase, anaphase, and telophase. Both processes involve the division of genetic material and the formation of new cells. However, meiosis includes an additional step called crossing over during prophase I, which results in 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.
The process of cell division that creates genetic variety in cells is called meiosis. Meiosis involves two rounds of cell division, resulting in the formation of four daughter cells with unique combinations of genetic material. This process is important for sexual reproduction and contributes to genetic diversity.
Meiosis consists of two main stages: meiosis I and meiosis II. In meiosis I, homologous chromosomes pair up and exchange genetic material through crossing over in prophase I, leading to genetic variation. This is followed by the separation of homologous chromosomes during anaphase I. Meiosis II is similar to mitosis but involves the separation of sister chromatids, resulting in haploid daughter cells.
DNA organizes into chromosomes within the nucleus
1 by crossing over in prophase I , 2 by independent assoartment and 3 by mutations in s phase .1 by crossing over in prophase I , 2 by independent assoartment and 3 by mutations in s phase .Meiosis produces variation in gametes by crossing over & independent assortment also called reshuffling of genetic material . Such gametes after fertilization produce offspring with different characters .
A large population increases genetics variation. Mutation will also increase genetics variation.
ProphaseMetaphaseAnaphaseTelophaseSometimes, people will include a fifth event, called prometaphse, where the nuclear envelope disappears and the spindles form. Generally, this phase is classified with prophase.