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What happen during metaphase stage of mitosis?
In metaphase, the chromosomes line up in the center of the cell (aka the metaphase plate or equatorial plate) and then the spindle fibers attach to the centromeres. Centromeres: the center of the two conjoined chromosome pairs where they will break into two halves in the next phase Picture of metaphase on Wikipedia: http://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Metaphase.svg/800px-Metaphase.svg.png
What happens during late prophase?
The late prophase is one of the stages in mitosis and during this stage there is a break up of the nuclear envelope and the microtubules that the spindle fibers are made up of called the polar fibers reach from the pole to the equator of each cell. Specialized regions that are in the centromeres of chromosomes called Kinetochores attach to kinetochore fibers which are a type of microtubules. The spindle polar fibers connect the polar fibers to the kinetochores through their interaction with the kinetochore fibers and the chromosomes start to migrate towards the center of the cell.
Why are polar bodies important in the process of oogenesis?
Polar bodies are important in oogenesis because they help to ensure the proper distribution of genetic material during the formation of eggs. They are produced during meiosis, a process that reduces the number of chromosomes in the egg cell. The polar bodies contain the extra genetic material that is not needed for fertilization, allowing the egg cell to have the correct number of chromosomes for successful reproduction.
What is the function of polar microtubules?
Polar microtubules are a type of microtubule that play a key role in cellular processes such as cell division (mitosis and meiosis). They help in organizing and segregating chromosomes during cell division by attaching to the kinetochore proteins on chromosomes and facilitating their movement. Additionally, polar microtubules contribute to the overall structure and organization of the cell's cytoskeleton.
What is the role of polar bodies in the process of oogenesis?
Polar bodies are small cells produced during oogenesis that do not develop into eggs. Their role is to discard extra genetic material and ensure the egg cell has the correct number of chromosomes for fertilization.
What happen during metaphase stage of mitosis?
In metaphase, the chromosomes line up in the center of the cell (aka the metaphase plate or equatorial plate) and then the spindle fibers attach to the centromeres. Centromeres: the center of the two conjoined chromosome pairs where they will break into two halves in the next phase Picture of metaphase on Wikipedia: http://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Metaphase.svg/800px-Metaphase.svg.png
Is Polar bear semen fertile in human reproductive organs?
No, they have a different amount of chromosomes than we do.
How many chromosomes are in a black bear?
The Polar Bear has 74 Chromosomes.
How many polar bodies are produced during spermatogenenis?
both polar bodies have the same amount of chromosomes. which would be just diploid so 23, because its a gamete and therefore is half the normal amount. so yeah, 23 chromosomes in the first polar body.
What happens to the remaining chromosomes from the last division in meiosis?
In meiosis all the chromosomes are incorporated into sperm cells whereas production of an unfertilized egg results in the leftover chromosomes incorporated into polar bodies.
What is the outcome of meiosis in males and females?
It isn't different. Both parents give half of their chromosomes to their offspring.
What happens during late prophase?
The late prophase is one of the stages in mitosis and during this stage there is a break up of the nuclear envelope and the microtubules that the spindle fibers are made up of called the polar fibers reach from the pole to the equator of each cell. Specialized regions that are in the centromeres of chromosomes called Kinetochores attach to kinetochore fibers which are a type of microtubules. The spindle polar fibers connect the polar fibers to the kinetochores through their interaction with the kinetochore fibers and the chromosomes start to migrate towards the center of the cell.
How do you predict if the substance is polar slightly polar or non-polar by looking at its structure?
If all sides are the same its non-polar, but if they are different then the substance is polar.
How many polar bears in a polar bear family?
there are no different sorts of polar bears, like there are different sorts of cats. There are only the stages of life a polar bear goes through, from cub to adult.
What are the differences between polar bears and lions?
Cats and bears are very different. A polar bear and a cheetah are different colors and different sizes. A cheetah runs much faster than a polar bear.
How is a seal different from a polar bear?
a seal is different from a polar bear because a seal has flippers and blubber a polar bear has 4 legs and has fur and a polar bear eats the seal but the seal doesn't eat the polar bear so the seal is prey to the polar bear k
Why are polar bodies important in the process of oogenesis?
Polar bodies are important in oogenesis because they help to ensure the proper distribution of genetic material during the formation of eggs. They are produced during meiosis, a process that reduces the number of chromosomes in the egg cell. The polar bodies contain the extra genetic material that is not needed for fertilization, allowing the egg cell to have the correct number of chromosomes for successful reproduction.
