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What are 2 sources of genetic variation in a population?
Any two of: Mutations Non-disjunctions during anaphase of meiosis Polyploidy Sexual reproduction e.g. crossing-over/recombination during meiosis IF YOU ARE LOOKING FOR THE STUDYISLAND ANSWER IT IS a population whose members have many different traits
Why does meiosis result in more genetic variation than mitosis?
It would be wrong to consider mitosis insignificant as it helps in cell repair and replacement in our daily life and it would be impossible to survive without it and asexual reproduction as well but if it weren't for meiosis, none of us would have been born :) Meiosis is responsible for the division for our gamete cells which leads to the formation a zygote. from there on mitosis takes over.
Why must a cell reduce the amount of genetic material during meiosis?
So that it can separate into more cells.
How can prophase I and metaphase I in meiosis cause genetic variation in offerspring?
by being cheesy 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.
What leads to genetic variation in a population?
Random mutations in an organism's DNA after reproduction.what lead to variations
What is the reshuffling of chromosomes during meiosis?
genetic recombination
In mitosis and meiosis, does crossing over occur during the process of genetic recombination?
Yes, crossing over occurs during the process of genetic recombination in meiosis, but not in mitosis.
Recombination occurs during?
meiosis
Recombination occurs during which process?
Recombination occurs during meiosis, specifically during the crossing over phase of prophase I. This process involves the exchange of genetic material between homologous chromosomes, leading to genetic variation in offspring.
What Recombination occurs during .?
Recombination occurs when two molecules of DNA exchange pieces of their genetic material with each other. One of the most notable examples of recombination takes place during meiosis (specifically, during prophase I), when homologous chromosomes line up in pairs and swap segments of DNA
What are the possible DNA combinations that can result from genetic recombination during meiosis?
During genetic recombination in meiosis, the possible DNA combinations that can result are a mix of genetic material from the two parent cells, leading to new combinations of alleles and variations in the offspring's DNA.
What creates a variety in the offspring?
Genetic recombination during crossing over in prophase I of meiosis.
What is the significance of a homologous chromosome pair in the process of genetic recombination during meiosis?
Homologous chromosome pairs are important in genetic recombination during meiosis because they carry similar genes from each parent. This allows for the exchange of genetic material between the chromosomes, leading to genetic diversity in offspring.
What is the significance of homologous chromosomes in the process of genetic recombination during meiosis?
Homologous chromosomes play a crucial role in genetic recombination during meiosis by exchanging genetic material through a process called crossing over. This leads to genetic diversity in offspring, as it creates new combinations of genes on the chromosomes.
How do recombination and independent assortment contribute to genetic diversity during meiosis?
Recombination and independent assortment during meiosis contribute to genetic diversity by shuffling and mixing genetic material from two parents. Recombination creates new combinations of genes on chromosomes, while independent assortment randomly distributes these chromosomes into gametes. This results in a wide variety of genetic combinations in offspring, increasing genetic diversity.
What are the 3 sources of genetic recombination?
Genetic recombination refers to the process by which two DNA molecules exchange genetic information. The three types of genetic recombination are crossing over, conservative site-specific recombination and transpositional recombination.
What is the rearranging of genetic instructions called?
The rearranging of genetic instructions is called genetic recombination. This process occurs during meiosis, where homologous chromosomes exchange genetic material, leading to genetic diversity in offspring.
