Random assortment of chromosomes is one of the processes by which genetic variation is generated.
Explain what the process means and how new variation is produced as a consequence of random assortment.
Each organism has two sets of chromosomes: one from father and one from mother. In meiosis process, the cells have to divide in haploid way which occurs in meiosis I. the homologous chromosomes from mother and father get divides and form new cells of having haploid chromosomes. During that process, the maternal chromosome does not separate equally while paternal equally separates. The unequal separation of maternal chromosome leads one cell has more maternal chromosome than the second one. That called as random assortment of chromosomes. That also brings variations because unequal distribution; if a thing equally distributes to its associates then there is no variations. Therefore, the progeny who will get such type of chromosomes will have variations. The other factor during random assortment is homologous recombination. During anaphase I of meiosis, the homologous chromosomes recombine together and provide each other their parts. That also brings variations through unequal distributions. The random assortment of chromosomes is opposite to independent one of Mendel. Independent tells about equal distributions, which brings no variation.
Random assortment of chromosomes is one of the processes by which genetic variation is generated. Explain...
Which processes lead to most genetic variation in sexually reproducing organisms? Select all that apply. random fertilization cytokinesis crossing over independent assortment of chromosomes in meiosis
Which if the following is not a source of genetic variation in meiosis? O polar body formation O law of independent assortment o the random lining up of chromosomes on the metaphase plate crossing over O tetrad formation
Processes that determine heredity and contribute to genetic variation Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity. Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring always resemble their parents, they are genetically different from both of their...
31) During which of the following processes does independent assortment of chromosomes occur? A) in meiosis I only B) in meiosis II only C) in mitosis and meiosis I D) in mitosis and meiosis II Answer:
What is/are the most important factor(s) generating genetic diversity among individuals in a population of eukaryotes? a) mutation O b) independent assortment O c) genetic recombination d) b and conly e) all of the above are important in generating diversity in eukaryotes Question 8 1 pts Which of the following statements about genetic recombination is FALSE? O genetic recombination acts independently of independent assortment O genetic recombination occurs during the production of sperm O genetic recombination is important to the...
How is genetic variation increased during sexual reproduction? Choose ALL that apply. Select one or more: a. Crossing over occurs. b. The reproduction of cells through binary fission resulting in two different daughter cells. c. Independent assortment of homologous chromosomes during meiosis. d. Alleles are inherited from two parents instead of one. e. The pairing of sister chromatids. Which of the following images shows crossing over? Select one: Consider a gene with two alleles that show complete dominance. When two...
What is responsible for the genetic variation observed among offspring from the same parents? Select one: a. Independent assortment b. Gene linkage c. Recessive alleles d. Incomplete dominance
Which of these statements is incorrect? Syntenic genes are located on the same chromosome. Independent assortment results in recombinant chromosomes. You can reliably predict the relative genetic distance from genes’ physical distance on a chromosome. Linked genes are always syntenic. What is the relative genetic distance between two linked genes if the recombination frequency is 0.49? 0.49 cM 4.9 cM 49 cM 490 cM What statement best explains the distortion in Mendelian ratios observed by Bateson & Punnett in 1905?...
What is the genetic basis of sensory reception – how does genetic variation explain how we see, taste, and smell different things than other people?
Explain what it is that selection is actually acting on and how such variation is distributed throughout a population (gene pool) (blending vs. independent assortment). Dawkins suggests that selection is powerful yet unconscious of it's actions ("without any understanding at all"). He uses a variety of examples to highlight how various organisms drive selection, sometimes consciously and sometimes unconsciously, by mediating the breeding process. Using one of the examples explain how some organisms unconsciously drive the selection of others.