Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
How do the cells in meiosis differ from the cells in mitosis?
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
What is the genetic variation of mitosis and meiosis?
Meiosis creates more genetic variation. This is because it produces 4 daughter cells, none of which are genetically identical, while mitosis produces 2 identical daughter cells (which are identical to the parent cell).
How do the genetic contents of cells resulting from meiosis 1 and meiosis 2 differ?
In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas meiosis I produces 2 diploid daughter cells. Genetic recombination (crossing over) only occurs in meiosis I.
How does meiosis make genetically different cells?
Genetic variation is increased by meiosis
During fertilisation, 1 gamete from each parent combines to form a zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote.
Does mitosis produce genetically identical or genetically diverse cells explain?
In mitosis, daughter cells are clones of their parent cell. Hence they are genetically identical to each other.
Is there a genetic difference in the daughter cells produced during mitosis and meiosis?
The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
Does mitosis have genetic variation?
During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. … Meiosis also allows genetic variation through a process of gene shuffling while the cells are dividing. Mitosis and meiosis, the two types of cell division.
How does DNA replication differ between mitosis and meiosis quizlet?
How does DNA replication differ between mitosis and meiosis? a. DNA replication takes less time in meiosis because the cells are haploid.
What is a similarity between meiosis 1 and meiosis 2?
Both Meiosis I and II have the same number and arrangement of phases: prophase, metaphase, anaphase, and telophase. Both produce two daughter cells from each parent cell.
What happens between meiosis 1 and 2 that reduces the number of chromosomes?
In meiosis I homologous pairs align and are separated reducing the number of chromosomes by half. In meiosis II the dyads align and sister chromatids are separated.
What is the difference between nondisjunction in meiosis 1 and meiosis 2?
Nondisjunction can occur during meiosis I and meiosis II, resulting in abnormal chromosomes number of gametes. The key difference between nondisjunction in meiosis 1 and 2 is that during meiosis 1, homologous chromosomes fail to separate while in meiosis II sister chromatids fail to separate.
How does meiosis contribute to genetic variation while mitosis does not?
Assess how meiosis contributes to genetic variation, while mitosis does not. During meiosis, the independent assortment of the pairs of chromosomes and crossing over provide a large amount of genetic variation. Mitosis produces identical cells.
Which of the statements is not a difference between mitosis and meiosis?
Which of the statements is not a difference between mitosis and meiosis? In mitosis there is one cell division while in meiosis there are two cell divisions. Sister chromatids separate during mitosis but not during meiosis. … Mitosis usually produces two daughter cells while meiosis usually produces four cells.
Why do some cells perform mitosis while other cells perform meiosis?
Explanation: Mitosis is used to grow new tissues an repair the wounded ones. Meiosis is used to produce gametes which eventually fuse together to make zygote that will develop into a new individual.