This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Drosophila melanogaster, the fruit fly, has a 2n chromosome number of 8. Assume that you are ... (Read 61 times)

karen

  • Hero Member
  • *****
  • Posts: 537
on: Mar 26, 2020
Drosophila melanogaster, the fruit fly, has a 2n chromosome number of 8. Assume that you are microscopically examining the mitotic and meiotic cells of this organism. You note that in the female, two chromosomal pairs are metacentric and two pairs are acrocentric.

(a) Draw the chromosomal configurations as you would expect to see them at the stages listed:

mitotic metaphasefirst polar body (metaphase)
primary oocyte (metaphase)ootid (G1)
secondary oocyte (metaphase)

(b) Given that the previously mentioned cells are from individuals heterozygous for two independently segregating, autosomal loci, plum eyes and curled wings, place appropriate symbols (of your designation) on chromosomes in the drawings you made for part (a). Assume no crossing over, and there may be more than one correct answer in some cases.

(c) Assuming that a somatic G2 nucleus from the individuals mentioned above contains about 8.0 picograms of DNA, how much nuclear DNA would you expect in each of the cells mentioned in part (a)?
Essentials of Genetics ¦ Klug ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by karen on Mar 26, 2020

jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Mar 26, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 45% of students answer this correctly


karen

  • Member
  • Posts: 537
Reply 2 on: Mar 26, 2020
Thanks for the timely response, appreciate it

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Relationship between fruit radius and beak length in populations of native and introduced species of Relationship between fruit radius and beak length in populations of native and introduced species of
The number of words correctly completed in the New York Times crossword puzzle increases with age ... The number of words correctly completed in the New York Times crossword puzzle increases with age ...
Position effect, as illustrated in the eye phenotype in two female Drosophila Position effect, as illustrated in the eye phenotype in two female Drosophila
A bilateral gynandromorph of Drosophila melanogaster A bilateral gynandromorph of Drosophila melanogaster
Contrasting chromosome origins of an autopolyploid versus an allopolyploid Contrasting chromosome origins of an autopolyploid versus an allopolyploid
Deletion mapping of the Drosophila Notch (n) gene Deletion mapping of the Drosophila Notch (n) gene
Video: Spinal Cord Injury Animation

For a complete list of videos, visit our video library