What creates different combinations of maternal and paternal chromosomes?
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.
Which event can directly produce one chromosome containing both maternal and paternal genes?
Meiosis is a cell division process that produces haploid cells that are genetically variable. The parent cell that begins meiosis has pairs of chromosomes in which the maternal member of the pair came from their mother and the paternal member of the pair came from their father.
What process produces genetic diversity through random distribution of maternal and paternal chromosomes?
Because the duplicated chromatids remain joined during meiosis I, each daughter cell receives only one chromosome of each homologous pair. … By shuffling the genetic deck in this way, the gametes resulting from meiosis II have new combinations of maternal and paternal chromosomes, increasing genetic diversity.
What results in a random mixture of paternal and maternal?
What results in a random mixture of paternal and maternal genetic material in each daughter cell during meiosis? Random alignment of chromosome pairs during metaphase I. … Two sperm cells fertilize two separate egg cells.
Why are both paternal and maternal chromosomes present in some gametes?
Why are both paternal and maternal chromosomes present in some gametes? … During metaphase of meiosis I, homologous chromosomes and the alleles they possess are distributed to different gametes.
When genes are close together on the same chromosome, they are said to be linked. That means the alleles, or gene versions, already together on one chromosome will be inherited as a unit more frequently than not.
Which one produces the variation in the combinations of alleles on a single chromosome?
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).
What process produces genetic diversity through random distribution of chromosomes?
Explanation: Meiosis, which includes independent assortment of homologous chromosomes and chromosomal crossover, contributes to genetic diversity. Independent assortment of chromosomes is the random distribution of one chromosome per homologous chromosomal pair to each daughter cell during anaphase I.
What process produces genetic diversity through random distribution of chromosomes quizlet?
During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.