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What are two parts of cell division?
Mitosis and Cytokinesis
What is the importance of the haploid 1N Number?
The significance is, haploid 1N merely means that instead of having two sets of chromosomes (2N) there is only one set. Usually it is referred to when discussing gametes (sex cells) and sexual reproduction. Most organisms are diploid, and have that 2N formula. They have two sets of chromosomes in their sperm or egg. When a sex cell matures, it goes through meiosis, which splits the number of chromosomes from the 2N diploid to 1N haploid, so fertilization can occur. And the cycle continues...Once two cells join, and fertilization has occurred, the cell is 2N. When the organism's sex cells mature, they divide to create the haploid 1N.
In oogenesis a diploid reproductive cell divides meiotically to produce what?
i have no clue what the answer is just get a dictionary
Is this true that sex Cells have one-half of the number of chromosome Pairs as body -Somatic- Cells have?
Yes it is. Gametic sex Cells have the genetic complement of 1N; somatic Cells are 2N.
What does N stand for with haploid cells?
N refers to the number of sets of chromosomes in a cell. For haploid cells "n" stands for 1n which have one set of chromosomes. vs. diploid cells which are 2n having one set from mom's egg and one set from dad's sperm.
Why does meiosis result 1N cells rather than 2N cells?
During meiosis chromosomes are segregated at Anaphase I stage , this results in reduction in number of chromosomes from 2N to 1N .
What are two parts of cell division?
Mitosis and Cytokinesis
What is the importance of the haploid 1N Number?
The significance is, haploid 1N merely means that instead of having two sets of chromosomes (2N) there is only one set. Usually it is referred to when discussing gametes (sex cells) and sexual reproduction. Most organisms are diploid, and have that 2N formula. They have two sets of chromosomes in their sperm or egg. When a sex cell matures, it goes through meiosis, which splits the number of chromosomes from the 2N diploid to 1N haploid, so fertilization can occur. And the cycle continues...Once two cells join, and fertilization has occurred, the cell is 2N. When the organism's sex cells mature, they divide to create the haploid 1N.
Why is it important to have haploid sex cells rather than diploid ones?
If a normal diploid chromosome complement is represented by 2N a haploid chromosome complement would be 1N. Two haploid 1N sex cells combine to produce a 2N offspring. If the sex cells were 2N the offspring would be 2N+2N=4N...subsequent offspring would then be 8N and then 16N and then... Halving the genetic material prevents this bizarre sequence of events and insures that the same amount of genetic material is passed on each time.
What is the name of the process that cells use to divide?
Mitosis is the process that produces new 2N cells from 2N cells Meiosis is the process that produces 1N reproductive cells.
In oogenesis a diploid reproductive cell divides meiotically to produce what?
i have no clue what the answer is just get a dictionary
What happens to a 2n cell during meiosis?
2n in cytoplasm refers to the diploid number of chromosomes in a cell. Diploid means that two sets of chromosomes are present in the cytoplasm. In humans the diploid number is 46 chromosomes. This means that in human cells the 2n in cytoplasm is 46. In other organisms the 2n in cytoplasm can vary. For example: In fruit flies the 2n in cytoplasm is 8. In nematodes the 2n in cytoplasm is 6. In wheat the 2n in cytoplasm is 42.The 2n in cytoplasm can be used to distinguish between haploid and diploid organisms. Haploid organisms such as yeast have only a single set of chromosomes in the cytoplasm. Diploid organisms such as humans have two sets of chromosomes in the cytoplasm.
Is there a difference in the the two stages of meiosis?
Yes. The main difference is that DNA replicates before Mieosis I, but not before Mieosis II. For example, human cells are almost always diploid (2n). Before Mieosis I, the DNA doubles, resulting in a 4n cell. After Meiosis I, there are two 2n cells. Then Meoisis II occurs, without any DNA replication, to form a 1n cells. In humans, the 1n cells are eggs and sperm. When one egg (1n) and one sperm (1n) fuse, a normal 2n zygote is formed. Without this intricate system, repdroduction wod not occur as we know it.
How many chromosomes will an organism have in its body cells if the gametes contain 25 chromesones?
Mostly likely 50. Most organisms are diploid (2n), gametes are haploid (1n). If there are 25 chromosomes in the gamete, 25x2 = 50.
Is this true that sex Cells have one-half of the number of chromosome Pairs as body -Somatic- Cells have?
Yes it is. Gametic sex Cells have the genetic complement of 1N; somatic Cells are 2N.
Why is the number of chromosomes halved?
The normal cellular genetic complement number 2N is reduced to 1N in both of the sexual gametes so that when they recombine we end up with the standard chromosome number [1N + 1N = 2N] in our zygote.
How would you solve 3n-2n?
3n - 2n = n 3n - 2n = (3 - 2)n = 1n = n
