A diploid cell with 12 chromosomes (6 homologous chromosome pairs) goes through meiosis.
How many chromosomes does your cell have?
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
How many chromosomes will each daughter cell have if the cell has 12 chromosomes?
Overall, meiosis results in the formation of four haploid cells from a diploid parent cell. So if a cell has 12 chromosomes at the end of meiosis I which is reduction division, it means that the parent cell would have had 24 chromosomes in prophase I.
What type of cell has 24 chromosomes?
The correct answer is A. 24. Cell division in the somatic cells occurs through mitosis. Mitosis is a process in which a parent cell divides to two…
What type of cells only have 23 chromosomes?
Haploid describes a cell that contains a single set of chromosomes. The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.
What happens when you have 47 chromosomes?
Humans have 23 pairs of chromosomes. A trisomy is a chromosomal condition characterised by an additional chromosome. A person with a trisomy has 47 chromosomes instead of 46. Down syndrome, Edward syndrome and Patau syndrome are the most common forms of trisomy.
What are the 23 human chromosomes?
Humans have 23 pairs of chromosomes–22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.
During which phase of the cell cycle would a cell contain 12 chromosomes?
A cell starts out in G2 phase with 12 chromosomes, but after mitosis, each of the daughter cells has only 11 chromosomes in G1 phase.
How many chromosomes will a daughter cell have after mitosis when the parent cell has 12 chromosomes?
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.
What is G1 interphase?
The G1 phase, gap 1 phase, or growth 1 phase, is the first of four phases of the cell cycle that takes place in eukaryotic cell division. In this part of interphase, the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis.
Are humans diploid?
In humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes. … Human sex cells (egg and sperm cells) contain a single set of chromosomes and are known as haploid.
How many chromosomes are there in a cell before mitosis?
For humans, this means that during prophase and metaphase of mitosis, a human will have 46 chromosomes, but 92 chromatids (again, remember that there are 92 chromatids because the original 46 chromosomes were duplicated during S phase of interphase).
What is the number of chromosomes when a cell divides?
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.