Which is true about meiosis?
These cells are our sex cells – sperm in males, eggs in females. During meiosis one cell? divides twice to form four daughter cells. These four daughter cells only have half the number of chromosomes? of the parent cell – they are haploid. Meiosis produces our sex cells or gametes? (eggs in females and sperm in males).
Which of the following statements about meiosis is correct?
The correct answer is “Meiosis produces cells that differ genetically from the parent cell”.
Which of the following is meiosis?
Meiosis is a type of cell division in which chromosome number is reduced by half to produces gamete cells. It is required to produce egg and sperm cells necessary for sexual reproduction. Thus the correct answer is option A.
What statement is true about 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.
Which cell is formed as a result of meiosis?
In contrast to a mitotic division, which yields two identical diploid daughter cells, the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent. In sperm cells, four haploid gametes are produced.
Which process occurs in both mitosis and meiosis?
Aside from these two distinct purposes, both mitosis and meiosis occur in multiple stages during which the same general things happen: DNA replication and condensation, nuclear membrane degradation, spindle formation, chromosomal segregation and nuclear reformation.
Does fertilization occur in both mitosis and meiosis?
Gametes are haploid cells, with only half the DNA present in the diploid parent cell. This is necessary so that when a sperm and an egg combine at fertilization, the resulting zygote has the correct amount of DNA—not twice as much as the parents….Mitosis vs. Meiosis.
|Daughter cells identical to each other?||Yes||No|
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.
What is the difference between mitosis and meiosis Brainly?
Answer. In mitosis only one division occurs but in meiosis two divisions occur.
What are the five differences between mitosis and meiosis?
Although mitosis and meiosis follow the same basic steps, they have more differences than similarities. Another difference between mitosis and meiosis is that, during mitosis, there is only one cell division, so the cell goes through the steps of prophase, metaphase, anaphase, and telophase once.
What are 4 differences between mitosis and meiosis?
1 Answer. Mitosis gives two nuclei, and hence two cells, while meiosis gives four. Mitosis gives nuclei with the same number of chromosomes as the mother cell while meiosis gives cells with half the number. Mitosis includes one division , while meiosis includes two.
What meiosis means?
Meiosis, also called reduction division, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or sex cells, each possessing half the number of chromosomes of the original cell.
What is the main function of meiosis?
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
What is meiosis important?
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
What are the advantages of meiosis?
Benefits of Meiosis Meiosis continually reshuffles the genes resulting in a great variety of offspring. Without meiosis we would all look exactly alike. Meiosis allows each offspring to be different, and so potentially better, than the parent.
What are the two main functions of meiosis?
Two key functions of meiosis are to halve the DNA content and to reshuffle the genetic content of the organism to generate genetic diversity among the progeny.
Where does meiosis occur in our body?
Meiosis occurs in the primordial germ cells, cells specified for sexual reproduction and separate from the body’s normal somatic cells. In preparation for meiosis, a germ cell goes through interphase, during which the entire cell (including the genetic material contained in the nucleus) undergoes replication.
Where does meiosis occur in animals?
Comparison to mitosis
|Where does it happen?||Almost all eukaryotes (animals, plants, fungi, and protists); In gonads, before gametes (in diplontic life cycles); After zygotes (in haplontic); Before spores (in haplodiplontic)||All proliferating cells in all eukaryotes|
Where does meiosis occur in females?
Where does meiosis 2 occur in females?
Why does meiosis occur in humans?
Meiosis is the process of cells splitting into four haploid cells, thus reducing the chromosome number by half in each cell. They also give rise to gametes in the human body, but plant spores in plants. Meiosis occurs in the sex cells, so the sperm and egg cells in the human body, to create even more of themselves.