doubts(part 1).........please help

[colours]

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hi

could anybody help me with these questions

1.how many nucleotides are required to code for a protein with 150 amino acids

2.a urine sample with a pH of 5.7 will have a H+ ion conc of -?

3.general labial convexity of mandibular canine is not so great as
a)maxillary incisor
b)max. canine
c)max.premolar
d)mand.premolar

4.which of the foll statements regarding T helper cells 1 and 2 is correct
a)T helper 1 and 2 cells are distinguished by the cytokines they secrete
b)Th1 cells recognize peptides and class1 MHC,Th2 cells recognize peptides and class 2 MHC
C)Th1 and Th2 func by releasing perforins granzymes foll. activation
d)Th1 are CD4+ ,Th2 are CD8+
e)Th1 dev. in the bone marrow ,Th2 dev in the thymus

5.which chemical mediator of acute infl. is generated thru the activation of an enzyme precursor that requires activated hageman factor
a)bradykinin
b)serotonin
c)histamine
d)leukotriene
e)prostacyclin

6.which of the foll. best describes patients who dev. meningitis foll. mumps,coxsackie virus or echovirus infections
a)rarely develop permanent neural damage
b)sensitivity to viral toxins
c)subject to exacerbations once latent virus is activated
d)most often initially infected by blood containing the virus
e)any other(please mention )

thanks

 

[colours]

anyone.............

 

[manik khisti]

hi

could anybody help me with these questions

1.how many nucleotides are required to code for a protein with 150 amino acids

2.a urine sample with a pH of 5.7 will have a H+ ion conc of -?

3.general labial convexity of mandibular canine is not so great as
a)maxillary incisor
b)max. canine
c)max.premolar
d)mand.premolar

4.which of the foll statements regarding T helper cells 1 and 2 is correct
b)Th1 cells recognize peptides and class1 MHC,Th2 cells recognize peptides and class 2 MHC
C)Th1 and Th2 func by releasing perforins granzymes foll. activation
d)Th1 are CD4+ ,Th2 are CD8+
e)Th1 dev. in the bone marrow ,Th2 dev in the thymus

5.which chemical mediator of acute infl. is generated thru the activation of an enzyme precursor that requires activated hageman factor
a)bradykinin
b)serotonin
c)histamine
d)leukotriene
e)prostacyclin

6.which of the foll. best describes patients who dev. meningitis foll. mumps,coxsackie virus or echovirus infections
a)rarely develop permanent neural damage
b)sensitivity to viral toxins
c)subject to exacerbations once latent virus is activated
d)most often initially infected by blood containing the virus
e)any other(please mention )

thanks

1: 450
2: i guess not sure 5.7
3: max canine
a)T helper 1 and 2 cells are distinguished by the cytokines they secrete
5: a
6: nt sure

plz correct me if i m wrong
all the best
manik

 

[colours]

1: 450
2: i guess not sure 5.7
3: max canine
a)T helper 1 and 2 cells are distinguished by the cytokines they secrete
5: a
6: nt sure

plz correct me if i m wrong
all the best
manik

thanks manik

 

[colours]

hi

could anybody help me with these questions

1.how many nucleotides are required to code for a protein with 150 amino acids

2.a urine sample with a pH of 5.7 will have a H+ ion conc of -?

3.general labial convexity of mandibular canine is not so great as
a)maxillary incisor
b)max. canine
c)max.premolar
d)mand.premolar

4.which of the foll statements regarding T helper cells 1 and 2 is correct
a)T helper 1 and 2 cells are distinguished by the cytokines they secrete
b)Th1 cells recognize peptides and class1 MHC,Th2 cells recognize peptides and class 2 MHC
C)Th1 and Th2 func by releasing perforins granzymes foll. activation
d)Th1 are CD4+ ,Th2 are CD8+
e)Th1 dev. in the bone marrow ,Th2 dev in the thymus

5.which chemical mediator of acute infl. is generated thru the activation of an enzyme precursor that requires activated hageman factor
a)bradykinin
b)serotonin
c)histamine
d)leukotriene
e)prostacyclin

6.which of the foll. best describes patients who dev. meningitis foll. mumps,coxsackie virus or echovirus infections
a)rarely develop permanent neural damage
b)sensitivity to viral toxins
c)subject to exacerbations once latent virus is activated
d)most often initially infected by blood containing the virus
e)any other(please mention )

thanks

could anyone give me the answer for 2nd and 6th question

 

[rtvj]

Hi manik

How did u come up with 450??

thanks

1: 450
2: i guess not sure 5.7
3: max canine
a)T helper 1 and 2 cells are distinguished by the cytokines they secrete
5: a
6: nt sure

plz correct me if i m wrong
all the best
manik

 

[manik khisti]

Hi manik

How did u come up with 450??

thanks

each aminoacid is represented by 1 codon (triplet of 3 nitrogenous bases) and nucleotide is nitrigenous base +phos+ sugar .so to reprent 150 aminoacids. multply 150 by 3 to get 450 nulecoltides.
hope i have cleard ur doubt
manik

 

[rtvj]

thanks manik

each aminoacid is represented by 1 codon (triplet of 3 nitrogenous bases) and nucleotide is nitrigenous base +phos+ sugar .so to reprent 150 aminoacids. multply 150 by 3 to get 450 nulecoltides.
hope i have cleard ur doubt
manik

 

[VClovesteeth05]

thanks manik

i think there was a mistake, there are 150x3, plus 3 more amino acids for the stop codon, thus there would be 453

i would like to thank my labmate jjm for figuring this out!

 

[chungit12]

hey... questions on DAT don't go that much into details.

 

[colours]

hi

could anybody help me with this question

- a urine sample with a pH of 5.7 will have a H+ ion conc of -?



thanks

 

[colours]

hi

could anybody help me with this question

- a urine sample with a pH of 5.7 will have a H+ ion conc of -?



thanks

anyone!!!!!!!!!!!!

 

[Athene]

Respiratory system in kaplan is more like a chemistry chapter.......

 

[rtvj]

During tooth eruption , permanent successors of primary teeth move occlusaly and :

1. lingually
2.buccally
3.mesially
4 distally

I thot the answer was lingual....but the answer is given as buccally?!?!
Is it a typo??

can someone pls explain..thanks!

rtvj

 

[Vrnda]

Please someone kindly help with these questions.....
my exam is coming up..........
Thank you
V
3. Which of the following features is common to both mandibular first and second premolars?

a. Triangular in outline occulssal table
b. Horizontal distal marginal ridge
c. Bilateral symmetrical crown
d. Dissimilar marginal ridges
e. No transverse ridge

4. Which of the following crown surfaces of teeth has a contact area that is theoretically located at the MOST cervical level?
a. Mesial of Tooth # 6
b. Distal of Tooth # 12
c. Mesial of Tooth # 3
d. Distal of Tooth # 11

5. When a brief period of hysterical hyperventilation causes respiratory alkalosis tetany might be caused by a sudden DECREASE in which of the following kinds of calcium.
a. total Serum
b. Ionized serum
c. Citrate bound

6. Total urinary nitrogen excretion is LEAST when an individual is
a. starving
b. On a well balanced diet
c. On a diet containing adequate fat and carbohydrate but no protein.


7. A slight detachment of the retina results in a decrease of length from the optical center, and the subject therefore exhibits????????

8. In a class III malocclusion the mesiofacial cusp of the mandibular first molar occludes in the:
a. central fossa of the maxiallary first molar
b. mesial fossa of the maxillary second premolar
c. embrausre between maxillary first and second premolars

9. In maximum opening the condyles are positioned

a. in the anterior glenoid fossa
b. in the posterior glenoid fossa
c. either inferior to the articular tubercle or anterior to it

10. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the
a. shorter the cusps of the posterior teeth
b. greater the intercondylar distance
c. lesser the intercondylar distance

11. Which of the following describes the contact relationship between the maxillary central incisor and maxillary lateral incisor.

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.


THANKS
V

 

[Vrnda]

Please help......

 

[Inshaa]

Please someone kindly help with these questions.....
my exam is coming up..........
Thank you
V
3. Which of the following features is common to both mandibular first and second premolars?

a. Triangular in outline occulssal table
b. Horizontal distal marginal ridge
c. Bilateral symmetrical crown
d. Dissimilar marginal ridges
e. No transverse ridge
e not sure
4. Which of the following crown surfaces of teeth has a contact area that is theoretically located at the MOST cervical level?
a. Mesial of Tooth # 6
b. Distal of Tooth # 12
c. Mesial of Tooth # 3
d. Distal of Tooth # 11

5. When a brief period of hysterical hyperventilation causes respiratory alkalosis tetany might be caused by a sudden DECREASE in which of the following kinds of calcium.
a. total Serum
b. Ionized serum
c. Citrate bound
Ans a
6. Total urinary nitrogen excretion is LEAST when an individual is
a. starving
b. On a well balanced diet
c. On a diet containing adequate fat and carbohydrate but no protein.
Ans c

7. A slight detachment of the retina results in a decrease of length from the optical center, and the subject therefore exhibits????????
Ans farsightedness -not sure
8. In a class III malocclusion the mesiofacial cusp of the mandibular first molar occludes in the:
a. central fossa of the maxiallary first molar
b. mesial fossa of the maxillary second premolar
c. embrausre between maxillary first and second premolars
Ans b
9. In maximum opening the condyles are positioned

a. in the anterior glenoid fossa
b. in the posterior glenoid fossa
c. either inferior to the articular tubercle or anterior to it
Ans c
10. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the
a. shorter the cusps of the posterior teeth
b. greater the intercondylar distance
c. lesser the intercondylar distance
Ans a
11. Which of the following describes the contact relationship between the maxillary central incisor and maxillary lateral incisor.

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.
a not sure

THANKS
V

correct me if wrong

 

[jg68]

correct me if wrong

5. When a brief period of hysterical hyperventilation causes respiratory alkalosis tetany might be caused by a sudden DECREASE in which of the following kinds of calcium.
a. total Serum
b. Ionized serum
c. Citrate bound
Ans a

Wouldn.t it be ionized serum. Most of the available calcium is ionized serum. Im not sure though

 

[anjali_45]

yes it shud be ionized serum
as that is the readily avaliable and ionized is the one that is involved in action potential

5. When a brief period of hysterical hyperventilation causes respiratory alkalosis tetany might be caused by a sudden DECREASE in which of the following kinds of calcium.
a. total Serum
b. Ionized serum
c. Citrate bound
Ans a

Wouldn.t it be ionized serum. Most of the available calcium is ionized serum. Im not sure though

 

[Vrnda]

8. In a class III malocclusion the mesiofacial cusp of the mandibular first molar occludes in the:
a. central fossa of the maxiallary first molar
b. mesial fossa of the maxillary second premolar
c. embrausre between maxillary first and second premolars
Ans b
9. In maximum opening the condyles are positioned

a. in the anterior glenoid fossa
b. in the posterior glenoid fossa
c. either inferior to the articular tubercle or anterior to it
Ans c
10. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the
a. shorter the cusps of the posterior teeth
b. greater the intercondylar distance
c. lesser the intercondylar distance
Ans a

11. Which of the following describes the contact relationship between the maxillary central incisor and maxillary lateral incisor.

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.??
a not sure

 

[colours]

8)yes ..........it is b
9 &10)not sure
11)c (max.ant's have larger lingual emb. and mand ant's have larger facial emb.)

8. In a class III malocclusion the mesiofacial cusp of the mandibular first molar occludes in the:
a. central fossa of the maxiallary first molar
b. mesial fossa of the maxillary second premolar
c. embrausre between maxillary first and second premolars
Ans b
9. In maximum opening the condyles are positioned

a. in the anterior glenoid fossa
b. in the posterior glenoid fossa
c. either inferior to the articular tubercle or anterior to it
Ans c
10. The GREATER the horizontal overlap (overjet) of the anterior teeth, then the
a. shorter the cusps of the posterior teeth
b. greater the intercondylar distance
c. lesser the intercondylar distance
Ans a

11. Which of the following describes the contact relationship between the maxillary central incisor and maxillary lateral incisor.

a. Contact is offset to the lingual
b. Contact is centered incisocervically
c. Lingual embrasure is larger than the facial embrasure.??
a not sure

 

[geetanjali2126]

During tooth eruption , permanent successors of primary teeth move occlusaly and :

1. lingually
2.buccally
3.mesially
4 distally

I thot the answer was lingual....but the answer is given as buccally?!?!
Is it a typo??

can someone pls explain..thanks!

rtvj

hi
can any one tell me the differencer in TOMES GRanular layer, tomes processes and TOMES FIBRES
THANKS