CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pairs of alleles for the same trait separate from each other during Meiosis
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Different genes (chromosomes) separate during meiosis, independently of each other (its random!)
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The exchanges of genetic material between homologous chromosomes
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When a dominant gene and a recessive gene are present, the dominant gene will appear in the phenotype
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Detailed explanation-1: -During meiosis, the pairs of homologous chromosome are divided in half to form haploid cells, and this separation, or assortment, of homologous chromosomes is random. This means that all of the maternal chromosomes will not be separated into one cell, while the all paternal chromosomes are separated into another.
Detailed explanation-2: -Independent assortment is the process where the chromosomes move randomly to separate poles during meiosis. A gamete will end up with 23 chromosomes after meiosis, but independent assortment means that each gamete will have 1 of many different combinations of chromosomes.
Detailed explanation-3: -The idea behind independent assortment is that genes are inherited independently of one another. In other words, the genetic factors that control crest and sex are physically separate. Because the genetic factors are physically separate, they segregate independently during gamete (egg and sperm) formation.
Detailed explanation-4: -Biology Definition: The Law of Independent Assortment states that the process of random segregation and assortment of pairs of alleles during gamete formation will result in the production of gametes with all possible combinations of alleles in equal numbers.
Detailed explanation-5: -When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other. This called is called independent assortment. It results in gametes that have unique combinations of chromosomes.