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I do GP Biology (9th year here), and I'm on the quiz "Week 13-Meiosis: The Life Cycle of S-x Cells". I got the question What happens during crossing over? The answer was "homologous chromosomes trades pieces of DNA." Hope this was the answer you're looking for!
What else can I help you with?
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
Chromosomes form during what?
Chromosomes form during cell division, specifically during the process of mitosis. During mitosis, the chromosomes condense and line up before being separated into two daughter cells.
During which phase does the chromatin condense into chromosomes?
The chromosomes coil up and condense during prophase
The pairing up of maternal and paternal chromosomes during meiosis happens in?
The pairing up of maternal and paternal chromosomes during meiosis happens in the prophase I stage. This pairing is called synapsis and results in the formation of a structure called a tetrad.
What results in the exchange of alleles and produces now combinations of alleles?
Crossing over during prophase I of meiosis.
What results from the process of crossing over during prophase I?
During crossing-over, chromosomes of a homologous pair breaks and exchange genes.
How genatic material can be rearnged during meiosis?
By crossingover.
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 results from the process of crossing-crossing during prophase 1?
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.
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.
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.
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.
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
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.
During which process does crossing-over occur?
crossing over occurs in meiosis I, specifically during prophase
