Meiosis followed by gametogenesis results into X and Y chromosome containing gametes.
The cell type that has 22 autosomes and an X sex chromosome is a gamete, such as an egg or sperm cell.
Klinefelter syndrome is caused by the presence of an extra X chromosome in males due to a random error in cell division, known as nondisjunction. This results in a chromosomal mutation where males have an additional X chromosome, leading to physical and developmental differences.
The largest cell in living things is the ostrich egg cell. It is considered large because it can be seen with the naked eye and is about 170mm x 130mm in size.
Normally a cells chromosomes are single strands - a bit like a pice of string. Just prior to cell division, a chromosome replicates (=makes another copy of itself) and these two copies are joined together at a point called the centromere. Each copy is now called a chromatid and being joined at the centromere make the familiar "X" shape, with each copy (chromatid) forming a side of the X and will have exactly the same sequence of genes down its length as the other chromatid (they are copies!). In cell division the copies (chromatids) will be pulled apart (X becomes > <) to become chromosomes in their own right.
Meiosis and mitosis are types of cell division that involve the replication and division of chromosomes. Meiosis produces sex cells (eggs and sperm) with half the number of chromosomes as the parent cell, while mitosis produces identical cells with the same number of chromosomes. Sex cells have either X or Y chromosomes, determining the individual's sex.
the identcal replication of one cell to greate a genetially identical daughter cell x
The cell type that has 22 autosomes and an X sex chromosome is a gamete, such as an egg or sperm cell.
Klinefelter syndrome is caused by the presence of an extra X chromosome in males due to a random error in cell division, known as nondisjunction. This results in a chromosomal mutation where males have an additional X chromosome, leading to physical and developmental differences.
In Chapter 10, you will learn about the different stages of the cell cycle (interphase, mitosis, and cytokinesis), the regulation of cell division by checkpoints, and the role of mitosis in growth and repair of tissues. You will also study topics such as the importance of DNA replication, chromosome structure, and the consequences of errors in cell division.
500 cell divisions. Why? Because 500x2=1000. You also could have found the answer by just doing 1000 divided by 2. Which equals obviously 500.
During metaphase in cell division, a chromosome looks like a condensed and tightly coiled structure that is visible under a microscope. It appears as an X-shaped structure with two identical sister chromatids joined at the centromere.
When the cells grows , or increases in size, it might reach, say, double (x2) it's original size, the cell then divides in half (x.5) and returns to it's original size. To show this mathematically.... e.g. original size = 10 units original size x 2 = 10 x 2 = 20 the cell divides so, 20 x .5 = 10 back to the original size, the 2 cells then grow and when they become double the size they divide leaving 4 cells, they grow and so on...
Chromosomes have an X-like shape because they are made up of two sister chromatids that are joined together at a point called the centromere. This structure helps to ensure that each daughter cell receives the correct amount of genetic information during cell division.
The largest cell in living things is the ostrich egg cell. It is considered large because it can be seen with the naked eye and is about 170mm x 130mm in size.
you do multiplication *or X
Use Lcg X-Plore,or any type of zipmanager.
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