1. The SDN iPhone App is back and free through November! Get it today and please post a review on the App Store!
    Dismiss Notice
  2. Guest, be sure to check out How To Get Into Dental School, our free downloadable PDF with step-by-step details for dental school applicants!
    Dismiss Notice
  3. Dismiss Notice

help with this question

Discussion in 'International Dental' started by dent02, Nov 17, 2005.

  1. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    what is the number of chromosomes at the end of meiosis and mitosis?

    mitosis:
    2 daughter cells(2n)=46

    meiosis:
    4 daughter cells-is it 4n=4x23?

    I am not sure for meiosis is 4x23 correct.
    pls correct me ...........................

    number of chromososmes present at the end of telophase?
     
  2. Note: SDN Members do not see this ad.

  3. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    Some one pls reply..............................
     
  4. rakhi

    rakhi Junior Member
    5+ Year Member

    Joined:
    Oct 18, 2005
    Messages:
    49
    Likes Received:
    0
    somatic cell:
    In mitosis 2 daughter cells are produced,and in each cell 2n chromosomes are present ,ie 2x23 in humans=46 chromosomes in one cell

    gamates:
    In meiosis 4 daughter cells are produced but the no.of chromosomes in a cell is 1n,ie 23 chromosomes

    but i dont know whether we have to add up chromosomes from each daughter cells.i think it depends on how the question is asked...and also in females only one egg cell is formed as other three are polar bodies which will degenerate.

    so i think we should answer it as 46 chromosomes [2n] after mitosis and 23 chromosomes after meiosis[1n]

    please correct me.
     
  5. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    thank you !!!
     
  6. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    pls answer.

    each of the following is found in the posterior mediatinum except one
    a.vagus nerve-sup.mediastinum
    b.phrenic nerve-middle mediatinum
    c.thoracic duct-post.mediatinum
    d.greater splanchnic nerve-post.mediastinum
    e.sympathetic ganglia-post.mediatinum

    So which is the answer? pls correct me
     
  7. rakhi

    rakhi Junior Member
    5+ Year Member

    Joined:
    Oct 18, 2005
    Messages:
    49
    Likes Received:
    0
    i think itz (b)Phrenic nerve

    please correct me....
     
  8. mekha

    mekha Senior Member
    7+ Year Member

    Joined:
    Jun 23, 2004
    Messages:
    289
    Likes Received:
    0
    ur right
     
  9. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    y not vagus,it is in superior mediatinum.pls explain
     
  10. rakhi

    rakhi Junior Member
    5+ Year Member

    Joined:
    Oct 18, 2005
    Messages:
    49
    Likes Received:
    0
    some of the structures in superior mediastinum are also present in posterior mediastinum which also include vagus nerve.

    This is what i read in Gray's anatomy:

    The Posterior Mediastinum is an irregular triangular space running parallel with the vertebral column; it is bounded in front by the pericardium above, and by the posterior surface of the diaphragm below, behind by the vertebral column from the lower border of the fourth to the twelfth thoracic vertebra, and on either side by the mediastinal pleura. It contains the thoracic part of the descending aorta, the azygos and the two hemiazygos veins, the vagus and splanchnic nerves, the esophagus, the thoracic duct, and some lymph glands.

    hope this helps.
     
  11. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    thank you very much!
     
  12. Ur perfectly right



     
  13. rakhi

    rakhi Junior Member
    5+ Year Member

    Joined:
    Oct 18, 2005
    Messages:
    49
    Likes Received:
    0
    Thanks Mekha and Blue eyes. :)
     
  14. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    Pls help with the following questions:

    1.smallest cusp of mandibular 1M

    a.MF
    b.ML
    c.DF
    d.DL

    ans.c

    2.from facial view ,distal outline of crown of Mn.canine from cantact area to cervical line

    a.convex
    b.concave
    c.irregular
    d.straight

    ans.a

    3.which of the following describes the depth of curvature of cervical line on mesial surface of 13

    a.greater that on mesial of 6
    b.less than that on mesial of 11
    c.same as mesial of 6
    d.same as mesisal of 11
    e.greater than that on mesial of 5

    ans.b


    1999.Q.132
    ans. imbrication lines

    1999.Q.144
    ans.cervical

    1999 Q.151
    ans.distal of II(not sure)

    1999.Q.153
    ans.much greater f-l dimension(not sure)

    1999 Q156
    ans.mesialof 3

    1999 Q.158
    ans.shortest incisal slope to viewrs right.

    1999 Q.164
    ans.masial marginal

    1999 Q.181
    ans.genioglosus

    pls correct me..............................
     
  15. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    2000 Q.106
    ans.dilaceration?

    2000 Q.115
    ans.dentin

    2000 Q.125
    ans.man.11 pm

    2000 q.127
    ans.disto-occlusal slope longer than mesio-occlusal slope.

    2000 q.130
    ANS.cAPSULAR LIGAMENTS

    2000 q.132
    ans.three occlusal fossa

    2000 q.137
    ans.mutually protected occlusion

    2000.q.139
    ans.dilaceration?

    2000 q.144
    ans.dens in dente?

    2000 q.146
    ans.short root trunk or indistinct facial development groove separating two facial cusps.

    2000 q.149
    ans.four

    2000 q.151
    ans???

    2000.q.155
    ans.inclines facially

    2000 q.162
    ans.depressors

    2000 q.175
    ans.mandibular incisors

    2000 q.176
    ans.mn PM

    2000 q.183
    ans.either inferior to articular tubercle or anterior to it.

    2000.q.189
    ans.d??

    2000.q.193
    ans.mesial marginal

    2000 q.199
    ans.distofacial

    Someone pls answer these questions.Sorry no time to type the question.
     
  16. ridge

    ridge Senior Member
    5+ Year Member

    Joined:
    Aug 28, 2005
    Messages:
    135
    Likes Received:
    0
    hi i will ans ur questions,actually they are so much so can u wait for one more day?
    i will try to ans ur questions soon.
     
  17. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    Yes i can wait for one day
     
  18. ridge

    ridge Senior Member
    5+ Year Member

    Joined:
    Aug 28, 2005
    Messages:
    135
    Likes Received:
    0
     
  19. ridge

    ridge Senior Member
    5+ Year Member

    Joined:
    Aug 28, 2005
    Messages:
    135
    Likes Received:
    0
     
  20. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    thank you ridge!
     
  21. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    when viewed sagitally,which teeth have their long axes at an angle leat perpendicular to occlusal plane.
    a.mx.incisors
    b.mn.canines
    c.mn pm
    d.mx.pm
    e.mn.I m

    ans.a or e?

    in primary molars which portion of crown is shorter occlusogingivally.
    a.mesial
    b.distal
    c.midfacial
    d.midlingual

    ans.distal?

    on the crown of mn I m ,the facial cusp ridge of ML cusp originates at cusp tip and terminates at which of the following

    a.lingual groove
    b.halfway down the facial surface
    c.halfway down lingual surface
    d.mesial portion of central groove
    e.mesiolinguo-occlusal point angle area

    ans.?

    contact area most nearly circular is located on crown of which of the max.PM

    a.mesial of 1
    b.distal of 1
    c.mesial of second
    d.distal of second

    confused c or d?

    pls answer!
     
  22. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    someone pls reply
     
  23. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    someone pls help with these questions........................................
     
  24. reet

    reet Member
    7+ Year Member

    Joined:
    Feb 28, 2005
    Messages:
    59
    Likes Received:
    0
    hi dent02
    1 when viewed sagitally,which teeth have their long axes at an angle leat perpendicular to occlusal plane.
    a.mx.incisors
    b.mn.canines
    c.mn pm
    d.mx.pm
    e.mn.I m

    ans.e?

    2 in primary molars which portion of crown is shorter occlusogingivally.
    a.mesial
    b.distal
    c.midfacial
    d.midlingual

    ans.distal?

    3 on the crown of mn I m ,the facial cusp ridge of ML cusp originates at cusp tip and terminates at which of the following

    a.lingual groove
    b.halfway down the facial surface
    c.halfway down lingual surface
    d.mesial portion of central groove
    e.mesiolinguo-occlusal point angle area

    ans d
    correct me if i am wrong
    reet
     
  25. fido!

    fido! the ex-***!
    Moderator Emeritus 7+ Year Member

    Joined:
    May 12, 2004
    Messages:
    2,333
    Likes Received:
    1
    Status:
    Resident [Any Field]
    hello dent02,
    ans to ur qs r as follows......
    1.a
    2.b
    3.d
    4.not sure,but can find out!
    tc
    prady!
     
  26. dent02

    dent02 Member
    5+ Year Member

    Joined:
    Oct 12, 2005
    Messages:
    81
    Likes Received:
    0
    Thank you prady and reet.

    pls let me know the answer for the 4th question.
     
  27. reet

    reet Member
    7+ Year Member

    Joined:
    Feb 28, 2005
    Messages:
    59
    Likes Received:
    0
    sorry ans for 1 is a
     

Share This Page