Question

In: Math

Meiosisis the process in which a diploid cell that contains two copies of the genetic material...

Meiosisis the process in which a diploid cell that contains two copies of the genetic material produces an haploid cell with only one copy (sperms and eggs). The resulting molecule of genetic material is linear molecule that is composed of consecutive segments: a segment that originated from one of the two copies followed by a segment from the other copy and vice versa. The border points between segments are called points of crossover. The Haldane model for crossovers states that the number of crossovers between two loci on the genome has a Poisson(λ) distribution. Assume that the expected number of crossovers between two loci in a fixed period of time is 2.25.The next 3 questions refer to this model for crossovers. (The answer may be rounded up to 3 decimal places of the actual value.)

1. The probability of obtaining exactly 4 crossovers between the two loci is

2. The probability of obtaining at least 4 crossovers between the two loci is

3. A recombination between two loci occurs if the number of crossovers is odd. The probability of recombination between the two loci is, approximately, equal to ??? (Compute the probability of recombination approximately using the function "dpois". Ignore odd values larger than 9)

Solutions

Expert Solution

milcah answered 4 hours ago
Next > < Previous

Related Solutions

      Structure/ Function       Animal Cell Structure          Plant Cell Structure Outer Boundary of the Cell Contains Genetic Material
      Structure/ Function       Animal Cell Structure          Plant Cell Structure Outer Boundary of the Cell Contains Genetic Material(DNA) Long, Uncoiled Strands of DNA Watery, Gel-like Substance Channels That Move Materials Site of Protein Synthesis Package and Move Proteins Digest Wastes Storage Centers Rigid, Outer cellulose Cover Site of Photosynthesis
For a diploid mouse cell (40 chromosomes), state how many copies of each are present at...
For a diploid mouse cell (40 chromosomes), state how many copies of each are present at the following cell cycle stages: Cell cycle stage Number of chromosomes per cell Number of sister chromatids per cell   Number of centromeres per cell Number of chromosome copies attached to each centromere G1 phase G2 phase Prophase Anaphase A researcher has synchronized two different E. coli cultures so that all of the cells enter cell division simultaneously. One culture is wild-type E. coli cells,...
4. Identify two meiotic events that promote genetic variability. 5. If a cell has a diploid...
4. Identify two meiotic events that promote genetic variability. 5. If a cell has a diploid number of 4, then how many genetically different combinations can result from independent assortment alone?
Provide two reasons why the process of meiosis leads to genetic variation in diploid organisms.
Provide two reasons why the process of meiosis leads to genetic variation in diploid organisms.
A human diploid cell at G1 contains 6 picograms of DNA. A human cell at metaphase...
A human diploid cell at G1 contains 6 picograms of DNA. A human cell at metaphase II of meiosis would contain ............. picograms of DNA. (Provide a numerical response) A human diploid cell at G1 contains 6 picograms of DNA. Each cell produced at the end of meiosis would contain ............ picograms of DNA. (Provide a numerical response)
identify the genetic material for hereditary information inside the cell
identify the genetic material for hereditary information inside the cell
A diploid organism produces four gametes from one parent cell through the process of meiosis. Two...
A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 4 chromosomes, one gamete is found to have 3 chromosomes and one gamete is found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B)...
A diploid organism produces four gametes from one parent cell through the process of meiosis. Two...
A diploid organism produces four gametes from one parent cell through the process of meiosis. Two gametes are found to have 4 chromosomes, one gamete is found to have 3 chromosomes and one gamete is found to have 5 chromosomes. A) Is this the expected number of chromosomes that would be found in each gamete following a normal cycle of meiosis? If yes, explain why. If no, explain why not and describe how the gamete situation described above occurred. B)  ...
Which of the following is FALSE about a mushroom A. it contains haploid, dikaryotic, and diploid...
Which of the following is FALSE about a mushroom A. it contains haploid, dikaryotic, and diploid cells B. it was produced mostly by mitosis C. meiosis occurs in some of its cells D. the cells at the base of the stalk (with dirt on them) are diploid E. it produces spores
Describe the mechanisms by which meiosis would introduce genetic variability in a population. If one diploid...
Describe the mechanisms by which meiosis would introduce genetic variability in a population. If one diploid yeast cell was heterozygous for an allele with a Dominant mutation on it, what proportion of its offspring could be expected to carry that dominant mutation after mating? (Assume it mates with a cell that is homozygous for the normal, recessive allele.) Interestingly, yeast switch to sexual reproduction when they are under conditions of stress. For the purposes of this task, assume yeast populations...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT