Do homologous chromosomes align randomly?
Do homologous chromosomes align randomly?
During metaphase I, the homologous chromosomes are arranged in the center of the cell with the kinetochores facing opposite poles. The homologous pairs orient themselves randomly at the equator.
Which stage of meiosis does random orientation of homologous chromosomes occur?
Answer and Explanation: Random orientation of homologous chromosomes occurs in metaphase I of meiosis which corresponds to choice B.
How are homologous chromosomes sorted?
Homologous pairs of chromosomes line up at the metaphase plate during metaphase I of meiosis. The homologous chromosomes, with their different versions of each gene, are randomly segregated into daughter nuclei, resulting in a variety of possible genetic arrangements.
What is random arrangement meiosis?
Definition. The random organisation of chromosomes in the middle of the cell during the first stage of meiosis, which further increases genetic diversity.
What happens to homologous chromosomes during meiosis?
During meiosis I, homologous chromosomes are separated. Subsequently, during meiosis II, the sister chromatids separate to produce a total of four products, each with half the number of chromosomes as the original cell.
What process in meiosis involves random alignment of chromosomes quizlet?
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.
Which term is used to describe the way homologous pairs of chromosomes line up at random orientation during metaphase I?
What term is used to describe the way homologous pairs of chromosomes line up at random orientation during Metaphase I? Independent assortment; daughter cell randomly inherits either the maternal or paternal chromosome from each pair.
What is random assortment of chromosomes?
Random assortment of chromosomes refers to the way chromosomes get organized into daughter cells during gamete (sperm and egg) formation. It means that each sperm and each egg will have different combinations of chromosomes, some of which will have come from the person’s mother and others from the father.
What is random arrangement of chromosomes?
What happens to homologous chromosomes?
When recombination occurs during meiosis, the cell’s homologous chromosomes line up extremely close to one another. Then, the DNA strand within each chromosome breaks in the exact same location, leaving two free ends. Each end then crosses over into the other chromosome and forms a connection called a chiasma.
Do homologous chromosomes align in the prophase of mitosis?
(Recall that, in mitosis, homologous chromosomes do not pair together. In mitosis, homologous chromosomes line up end-to-end so that when they divide, each daughter cell receives a sister chromatid from both members of the homologous pair.)