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What processes occur that allow for genetic variation in meiosis?
Genetic variation during meiosis primarily occurs through two processes: independent assortment and crossing over. Independent assortment happens during metaphase I, where homologous chromosome pairs align randomly at the cell's equator, leading to various combinations of maternal and paternal chromosomes in gametes. Crossing over occurs during prophase I when homologous chromosomes exchange segments of DNA, creating new allele combinations. Together, these processes contribute to the genetic diversity observed in sexually reproducing organisms.
Crossing over always happens during what?
Crossing over occurs during meiosis, specifically during the first stage of meiosis I known as prophase I. It involves the exchange of genetic material between homologous chromosomes, resulting in genetic diversity in offspring.
What occurrence happens when meiosis crosses over?
Crossing over occurs during prophase I of meiosis. During crossing over, segments of the chromatids of homologous chromosomes trade places, so that each chromatid will contain DNA from both parents.
What happens during each of three processes that make up the water cycle?
Condensation --> Precipitation --> Evaporation
In what two ways does meiosis provide genetic variation?
The two sources of genetic variation in a cell during Meiosis are crossing-over during synapse and independent assortment.
What happens during crossing?
Crossing over is the process in which babies are made.
What happens to energy during biochemical processes?
i gk
Can crossing over occur during mitosis?
No, crossing over does not occur during mitosis. It is a process that happens during meiosis, specifically during prophase I. During crossing over, genetic material is exchanged between homologous chromosomes, leading to genetic variation in offspring.
Does crossing over occur during mitosis?
No, crossing over does not occur during mitosis. Crossing over is a genetic process that happens during meiosis, specifically during prophase I, where homologous chromosomes exchange genetic material. Mitosis is a different type of cell division that does not involve crossing over.
What happens to the distance between the spinous processes during flexion of the spine?
During flexion, the distance between the spinous processes is increased.
What can no occur during pro phase 2 that happens in pro phase 1?
Crossing-over
New genetic combinations result from?
New genetic combinations result from processes such as genetic recombination during meiosis, random assortment of chromosomes, and independent assortment of alleles. These processes lead to the creation of unique genetic profiles in offspring.
What happens during the processes of cross-pollination and self-pollination?
there is not to big of a differents
What stage is Crossing over happens?
Crossing over occurs during the prophase I stage of meiosis. This is when homologous chromosomes pair up and exchange genetic material, leading to genetic recombination.
Crossing over always happens during what?
Crossing over occurs during meiosis, specifically during the first stage of meiosis I known as prophase I. It involves the exchange of genetic material between homologous chromosomes, resulting in genetic diversity in offspring.
Which of the choices below happens during the absorptive state?
Anabolic processes exceed catabolic ones
What occurrence happens when meiosis crosses over?
Crossing over occurs during prophase I of meiosis. During crossing over, segments of the chromatids of homologous chromosomes trade places, so that each chromatid will contain DNA from both parents.
