a) The arrangement of homologous chromosomes relative to other homologous chromosomes during which stage of meiosis is responsible for Mendel's Principle Independent assortment. b) The separation of homologous chromosomes during which stage of meiosis is responsible for Mendel's Principle of Segregation?

a) The arrangement of homologous chromosomes relative to other homologous chromosomes during which stage of meiosis is responsible for Mendel's Principle Independent assortment. b) The separation of homologous chromosomes during which stage of meiosis is responsible for Mendel's Principle of Segregation?

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 4RQ: What is independent assortment? Does independent assortment occur during mitosis or during meiosis?

See similar textbooks

Similar questions

a) In pedigree B What fraction of polydactylous female is in generation iii? b) for pedigree A, describe the phynotype of male and female children in generation ii.
*Cystic fibrosis is a rare autosomal recessive condition. phenotypically normal man whose father had cystic fibrosis marries a phenotypically normal woman from outside the family.² a) Draw the pedigree as far as described. b) If the frequency of heterozygotes in the general population is 1/50, what is the probability that the couple's first child will have cystic fibrosis? c) If the first child does have cystic fibrosis, what is the probability that the second child will be normal?
Mendel crossed true-breeding plants with wrinkled and green peas to true breeding plants with round and yellow peas. Then he crossed the Fl plants to true-breeding plants with wrinkled, green peas and observed in the progeny 31 plants with round, yellow peas, 26 plants with round, green peas, 27 plants with wrinkled, yellow peas, and 26 with wrinkled, green peas. a) What proportion of these four phenotypes would be expected? b) Calculate the appropriate chi-square and determine if it is consistent with Mendelian expectations (be sure to indicate the probability range).
Which of the following is evidence that Mendel had that helped him to construct his Law of Segregation?A) His F2 generation in the dihybrid cross resulted in a 1:1:1:1 distribution of phenotypes.B) He found no linkage of different genes in the offspring of his pea plants.C) The F1 generation of the monohybrid cross resulted in blended phenotypes.D) The F2 generation of the monohybrid cross resulted in the recessive trait reappearing as a phhenotype.E) Two of the above are correct.
1. A) Apply the concept of sex linkage to explain why color blindness is more prevalent in men than in women. B) Mary is concerned that she may be a carrier for hemophilia, a sex-linked condition located on the X chromosome. Mary is married to John, who doesn't have hemophilia. Assuming Mary is a carrier, what are the genotype ratios expected for Mary and John's kids (specify for boys and for girls)? C) Mary and John have 2 boys, none of them has hemophilia. Can we use this fact as proof that Mary does not carry the allele for hemophilia? Explain your argument.
(a) During which division of meiosis do Mendel's rules of Segregation and Independent assortment аpply? (b) The genotype of F1 individuals in a tetrahybrid cross is AaBbCcDd. Assuming independent assortment of these 4 genes what are the probabilities that F2 offspring will have the following genotypes? (i) AABBCCDD (ii) AaBBccDd (c) If the quantity of DNA in a cell at G1 of the cell cycle is 5 picograms (pg); what will the quantity of DNA in that cell be at G2 phase of the cell cycle? Give reason
Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?
What is independent assortment? Does independent assortment occur during mitosis or during meiosis?
Assume that the trihybrid cross AABBrr x aabbRR is made in a plant species. Assume that A and B are dominant alleles, but there is no dominance effect of alleles at the R locus. a) How many different gametes are possible in the F1generation? What are the genotypes of these gametes? b) What is the probability of the parental aabbRR genotype in the F2 progeny? c) What proportion of the F2 progeny would be expected to be homozygous for all three genes?
When Gregor Mendel was working in the mid 1800s, scientists had not yet discovered chromosomes or meiosis. However, we now understand how Mendel's principles are rooted in the events of meiosis. As an example of this, state Mendel's principle of independent assortment and explain how it relates to independent assortment in meiosis.
Explain the following features of the Mendelian traits and fill the Punnet Squares. a)The disappearance of recessive phenotype in the F1 generation. b)The genotype of an individual expressing dominant phenotype can be differentiated by the test cross.
Duchenne Muscular Dystrophy (DMD) is a sex- linked, recessive disease in which a mutation in the gene for dystrophin results in muscle cell degeneration. A normal man marries a woman who is a carrier for DMD. a) What are the parent genotypes? b) What are the four possible offspring genotypes from this cross? HINT - do a Punnett Square to figure this out! c) If they have four sons, how many of them will have DMD? ( d) If they have eight children, how many will be carriers of DMD? BONUS (+1): Why are males more often affected by sex-linked disorders than females?