5 Questions
Explain the two kinds of cell division mentioned in the text.
The two kinds of cell division mentioned in the text are mitosis and meiosis. Mitosis is the most common form of cell division, forming all the cells in our bodies except the sex cells. Meiosis occurs in the sex organs and produces sex cells or gametes, which contain only half the original number of chromosomes.
What is the difference between diploid cells and haploid cells?
Human body cells have 46 chromosomes in 23 pairs called homologous pairs, making them diploid cells. Sex cells have 23 chromosomes, making them haploid cells.
Why do cells need to divide in most parts of the body?
Cells need to divide in most parts of the body so that organisms can grow and replace old or damaged cells. The cells produced by this type of cell division should be exactly the same as the cells they are replacing.
What occurs during cell division in terms of DNA replication and cell growth?
During cell division, DNA replication and cell growth occur together. Although cell growth is a continuous process, DNA synthesis occurs only during one specific stage in the cell cycle.
What happens when male and female gametes join together at fertilization?
When male and female gametes join together at fertilization, the resulting cell, called a zygote, will contain the full set of chromosomes and can then divide and grow into a new individual.
Test your knowledge on the reasons for cell division and the general aspects of cell division such as mitosis and meiosis. Explore the importance of cell division in fetal development, human development, and human injury and wound healing.
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