Which of the following best describes the difference between meiosis I and meiosis II? Explanation: Meiosis is a way sex cells (gametes) divide. … 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.
What is the main difference between the processes of mitosis and meiosis?
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
How are meiosis I and meiosis II different list two reasons quizlet?
In meiosis I, homologous chromosomes separate resulting in a reduction of ploidy. Each daughter cell has only 1 set of chromosomes. Meiosis II, splits the sister chromatids apart. … Meiosis produces our sex cells or gametes? (eggs in females and sperm in males).
What cell is mitosis?
Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word « mitosis » means « threads, » and it refers to the threadlike appearance of chromosomes as the cell prepares to divide.
How do meiosis I and meiosis II differ select the two answers that are correct quizlet?
~Meiosis I divides homologous chromosomes, whereas meiosis II divides sister chromatids. ~Meiosis I is preceded by DNA replication, whereas meiosis II is not preceded by replication. … ~Gametes would have all maternal chromosomes or all paternal chromosomes.
What are 3 similarities and 3 differences between mitosis and meiosis?
Mitosis consists of one stage whereas meiosis consists of two stages. Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes). Mitosis produces two identical daughter cells whereas meiosis produces four genetically different daughter cells.
What are the similarities and differences of mitosis and meiosis?
Mitosis produces two cells from one parent using one division event. But meiosis produces four new child cells with two divisions, each of which has half the genetic material of its parent. Mitosis takes place all over the body, while meiosis only takes place in the sex organs and produces sex cells.
What are the similarities and difference between mitosis and meiosis?
What Is the Difference Between Mitosis and Meiosis?
| Mitosis | Meiosis | |
|---|---|---|
| Number of cells created | End result: two daughter cells | End result: four daughter cells |
| Ploidy | Creates diploid daughter cells | Creates haploid daughter cells |
| Genetics | Daughter cells are genetically identical | Daughter cells are genetically different |
• Feb 9, 2021
What are the two types of meiosis?
Meiosis begins following one round of DNA replication in cells in the male or female sex organs. The process is split into meiosis I and meiosis II, and both meiotic divisions have multiple phases. Meiosis I is a type of cell division unique to germ cells, while meiosis II is similar to mitosis.
How do meiosis I and II contribute to genetic variation?
Because the duplicated chromatids remain joined during meiosis I, each daughter cell receives only one chromosome of each homologous pair. By shuffling the genetic deck in this way, the gametes resulting from meiosis II have new combinations of maternal and paternal chromosomes, increasing genetic diversity.
What event occurs during meiosis I and meiosis II quizlet?
non-sister chromatids of homologous chromosomes. have one of each pair of chromosomes found in the parent cell. Crossing-over occurs in meiosis I and meiosis II. Chromosome duplication occurs between meiosis I and meiosis II.
What is mitosis explain with diagram?
Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent. Mitosis occurs in somatic cells of plants and animals.
What is called cell division?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
What is the main difference between meiosis 1 and 2 quizlet?
Meiosis I is a reduction division where only one member of a homologous pair enters each daughter cell which becomes halploid. Meiosis II only splits up sister chromatids.
What are the similarities between meiosis 1 and meiosis 2?
Both Meiosis 1 and 2 have the same phases: Prophase, Metaphase, Anaphase and Telophase. One difference is that Meiosis 1 starts with a diploid cell and Meiosis 2 starts with 2 haploid cells, each with a homologous pair. Meiosis 1 results in 2 daughter cells and Meiosis 2 results in 4.
What are two similarities between mitosis and meiosis?
Mitosis and meiosis both involve duplication of a cell’s DNA content. Each strand of DNA, or chromosome, is replicated and remains joined, resulting in two sister chromatids for each chromosome. A common goal of mitosis and meiosis is to split the nucleus and its DNA content between two daughter cells.
What are the similarities 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. However, Meiosis I begins with one diploid parent cell and ends with two haploid daughter cells, halving the number of chromosomes in each cell.
How does meiosis play a role in evolution?
it increases the amount of genetic variation in the species. Explanation: Meiosis is a type of cell division that takes place in sex cells or reproductive cells. … The crossing over leads to the new genetic combinations of genetic material which result in the genetic variation in species.
What are the 7 steps of meiosis?
Therefore, meiosis includes the stages of meiosis I (prophase I, metaphase I, anaphase I, telophase I) and meiosis II (prophase II, metaphase II, anaphase II, telophase II).
What is the main purpose of meiosis?
Therefore the purpose of meiosis is to produce gametes, the sperm and eggs, with half of the genetic complement of the parent cells.
What is meiosis and its stages?
Sister chromatids separate during a second round, called meiosis II. Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
Where does genetic variation occur in meiosis?
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.
What are 3 reasons to explain genetic variations in meiosis?
We have seen that meiosis creates variation three ways: crossing over, mutations caused during crossing over, and independent assortment.
Which of the following best describes how meiosis contributes to genetic variation?
The replicated homologous pairs of chromosomes join together during « synapsis« . Here, sections of chromosomes are exchanged. The end result includes chromosomes with genes from both parents, which increases genetic variation. The process of synapsis and crossing over only occurs in sexual reproduction (meiosis).
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