The centriole's function is currently unknown and because of this, it is considered to be useless. Plants don't have centrioles, and it functions just fine as a plant. Centrioles are probably unnecessary in animals as well.
In animal cells, centrioles function as microtubule organizing systems that aid in separating duplicated genetic material in preparation for cell division. They are formed from centrosomes. On the other hand, plant cells do not have a need for centrioles because their centrosomes duplicate during interface and thus are capable of producing microtubule spindles to control the separation of genetic material themselves.
They are in many plants, only higher plants lack centrioles.
I don't know why higher plants don't have them.
Centrioles form astral rays during nulear division and formation of astral rays is not required in plant cells, therefore, centrioles are absent.
because it has centrioles
because they have microtubes
For body cells: mitosis For sex cells: meiosis
because centrioles have a dagree and can use a electron microscope to see the nucleaus inside
To Heal Injuries by reproducing itself (Cell division).
Meiosis is used to make gametes in the human body. The gametes will either be sperm or eggs depending on the gender.
what organelles are you referring to? Plants and animal cells each have a few organelles that the other one doesn't. for instant, plant cells have cell wall, but animal cells don't. and animal cells have centrioles but plant cells don't....
Mitosis was first discovered and meiosis evolved out of mitosis. Mitosis stands for the first division of a cell into two genetic identically cells. Meiosis stands for two divisions into four genetic different cells.
For body cells: mitosis For sex cells: meiosis
umm i think it is 2 but it might be 4 i get miosis and meiosis mixed up somtimes but i am pritty sur it is 2
because centrioles have a dagree and can use a electron microscope to see the nucleaus inside
To Heal Injuries by reproducing itself (Cell division).
All human cells have 46 chromosomes, 23 pairs. In sexual reproduction, if an egg and a sperm each with 46 chromosomes joined then the zygote would have 92 chromosomes. To keep this from happening, cells undergo meiosis. In meiosis the cells replicate the chromosomes and divide then divide again so they end up with only 23 chromosomes. Cells with half the number of chromosomes are called gametes.
very fast ................... ask your boi teacher not the world because .................. you might get someone like me that dosent know
Meiosis is used to make gametes in the human body. The gametes will either be sperm or eggs depending on the gender.
yes you are made of billions of cells You always have to have have billions of cells, or you will have a genetic meltdown. So yes, you do (but before you're born you're still undergoing mitosis, so you might have a little less than a billion).
They do not go through meiosis.
I might not understand your question correctly but here is a possible answer.. A cell can get stuck in mitosis through various reasons. one of them is through inhibition of cyclin dependent kinases or perhaps due to unsatisfied spindle pole checkpoints. The cells that get stuck in mitosis this way will simply not progress further and will not divide. A big chance is that a lot of these cells will go into apoptosis when stuck in this phase for too long. you could check if your cells are stuck in mitosis by measuring the DNA contents with a FACS machine, an increased population with n=2 (or higher) probably reflects a defect in the dividing stage of the cells.
what organelles are you referring to? Plants and animal cells each have a few organelles that the other one doesn't. for instant, plant cells have cell wall, but animal cells don't. and animal cells have centrioles but plant cells don't....