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During crossing over, the pairs of homologous chromosomes exchange pieces of their sister chromatids with one another. This process results in every sister chromatid being genetically different from one another. Eventually, meiosis II results in four non-identical haploid cells called gametes, each containing one set of chromosomes. Crossing over during prophase I greatly increases the possible genetic combinations for an offspring.
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What results from the process of crossing over during prophase I?
During crossing-over, chromosomes of a homologous pair breaks and exchange genes.
What results from the process of crossing over during prophase 1?
It results in the exchange of alleles between homologous chromosomes and produces new combination's of alleles.
How many cells are in prophase during the process of cell division?
During prophase of cell division, there are typically 46 cells in humans.
What process takes place during prophase?
Chromosomes are copied.
What process helps make meiotic cells genetically different and occurs during prophase but not during prophase 2?
Th process of independent orientation of chromosomes while in their tetrad forms. But, the more important process that also happens in prophase I is the process of crossing over where chromosomes, male and female, exchange regions of the chromosomes, one with the other.
How does DNA replicate during prophase in the cell cycle?
During prophase in the cell cycle, DNA replicates by unwinding and separating into two strands. Enzymes called DNA polymerases then create new complementary strands by adding nucleotides to each original strand. This process results in two identical copies of the DNA molecule.
In which phase of meiosis does crossing over occur.which results from this process?
Crossing over occurs during Prophase I of meiosis. This process results in the exchange of genetic material between homologous chromosomes, increasing genetic diversity by creating new combinations of genes.
When does the process of crossing over start and end during genetic recombination?
The process of crossing over starts during prophase I of meiosis and ends during metaphase I.
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
During which process does crossing-over occur?
crossing over occurs in meiosis I, specifically during prophase
From events during what phase do novel combinations of alleles arise?
Novel combinations of alleles arise during meiosis, specifically during the phase known as crossing over in prophase I of meiosis in which homologous chromosomes exchange genetic material. This results in genetic recombination and introduces new combinations of alleles into offspring.
In which phase do moving the pairs of centrioles to opposite poles?
Moving the pairs of centrioles to opposite poles occurs during the prophase stage of mitosis. This process helps to form the mitotic spindle, which is essential for ensuring accurate chromosome segregation during cell division.
