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they have to duplicate
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What happens to the chromosomes of a cell in order for meiosis to the begin?
They mate.
What happens to the chromosome of a cell in order for mitosis to begin?
they have to split
What happens to the chromosomes in a cell in order for meiosis to begin?
They must double
Why is it necessary for meiosis to produces cells with fewer chromosomes?
If it did not, the chromosome number would double in each generation.
Why does meiosis require two cellular divisions?
Meiosis is divided into Meiosis I and Meiosis II because the initial cell divides twice producing four genetically different sex cells (gametes) Each time a cell divides, it goes through Prophase, Metaphase, Anaphase, and Telophase. See the link below for a diagram showing the process.
Why is meiosis necessary after fertilization to maintain chromosome number?
meiosis occour only in sexual cells and its reduce the number of chromosomes so when the sperm cell fuse with ovum cell the number of chromosomes it will be the same as in parents cell. Humans cells have 46 chromosome sperm cells have 23 chromosomes ovoum cells 23 chromosomes when sperm cell fertilize the ovun they fuse their genetic material and we have 23+23=46 every cell in our body it has 46 chromosome except sexual cells
How does the order of genes in one member of the chromosome compare to the order of genes on the other chromosome?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
How does the order of genes in one member of a chromosome pair compare to the order of genes on the other chrososme?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
How does the order of genes in one member of chromosome pair compared to the order of genes on the other chromosome?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
How does the order of genes in one member of a chromosome pair compare the order of genes on the other chromosome?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
How does the order of the genes in one member of a chromosome pair compare to the order of genes on the other chromosome?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
How does the order genes in one member of a chromosome pair compare to the order of genes on the other chromosome?
Most homologous pairs look alike. They carry genes for the same characteristics and line up on the chromosome in the same order!
