Help in BIOLOGY ...please!

[XPFMember]

Assalamoalaikum!!

Why is the answer C ???

 

[libra94]

cuz the number of lysosome is the greatest in C
lysosoms contain hydrolytic enzymes

 

[XPFMember]

oh right... Jazak ALlah Khair!! btw...i may post more....so do help if possible

 

[XPFMember]

Assalamoalaikum!!

why is the answer C

 

[workinghard]

angel its B not C check again lol!

 

[XPFMember]

assalamoalaiikum workinghard!

..yeah right!! actually in my pastpaper ...that '1' in the question no. was missing...and while seeing i saw the answer of 5 ...lol...

 

[XPFMember]

Assalamoalaikum!!

why is the ans. D

 

[workinghard]

AoA
cux b4 divsion chromosome no doubles n after it it returns to original!

 

[XPFMember]

Jazak Allah!

 

[XPFMember]

Assalamoalaikum!

Why is the answer D?




and for this one(below) y is it A?

 

[XPFMember]

AOA!!

I think the ans. for this one is D....plus the examiner report says ''Only the more able candidates realised that from the piece of double-stranded DNA containing 6000 nucleotides, only one strand of 3000 nucleotides is used for transcription and translation.''

:%) y is the answer then given as B ?????

 

[XPFMember]

?????????????

 

[RiseAgainst]

AOA!!

I think the ans. for this one is D....plus the examiner report says ''Only the more able candidates realised that from the piece of double-stranded DNA containing 6000 nucleotides, only one strand of 3000 nucleotides is used for transcription and translation.''

:%) y is the answer then given as B ?????

3 nucleotides make 1 amino acid, so you gotta divide by 3.

 

[XPFMember]

AOA!!

I think the ans. for this one is D....plus the examiner report says ''Only the more able candidates realised that from the piece of double-stranded DNA containing 6000 nucleotides, only one strand of 3000 nucleotides is used for transcription and translation.''

:%) y is the answer then given as B ?????

3 nucleotides make 1 amino acid, so you gotta divide by 3.

ohh,..thnx got it...can u help me with others also?

 

[libra94]

Assalamoalaikum!

Why is the answer D?




and for this one(below) y is it A?

lol just saw that (thnks fr reminding )
at pH 10, it forms a random coil, which means that the hydrogen bonds are broken!
therefore it has lost its secondary structure

and for the other one is A
cuz,see--3 turns brick red which means that it contains the highst conc. of glucose...so it can be either A or C
then the nxt highest conc of glucose is on 4..(it must be less than of 3)
so again, it can be either A or C
the 3rd on is solution 1(its conc. of glucose must be less than that of solution 4)
so its A
and solution 2 has non reducing sugar in it

 

[XPFMember]

Assalamoalaikum!!

ahh..now p1 completed...doubts in P2

plz can someone give me a well detailed answer...

 

[naelmizan1994]

THESE ARE THE VARIOUS REASONS FOR THE PREVALANCE OF CHOLERA.
people in many parts of the world have no acess to clean chlorinated water.
ther eis a lack of health awareness reagarding proper hygiene.
people suffer frm protein malnutrition and cannot synthesise antibodies.
ORS is not available when required.
lack of trained personnel and medical services.
migration of refugees spread the disease.
no sanitation or arrangements for proper and safe sewage disposal.
poor living conditions.
This disease thrives in less economically developed countries.

 

[XPFMember]

if possible can anyone frame a proper answeer....cuz i dont know how to link all the points...

 

[workinghard]

i ll try 2 ans it .... wait 4 sometime...

 

[workinghard]

there are many reasons 4 cholera remainin a sig disease in some parts of the world. these parts r normally under developed or developing with no proper sanitation facilities, no heatlth n safety reagulations and bills. furthermore, ppl frequently live n overcrowded regions with close interaction with each other so that if one person gets infected da whole community becomes infected n acts as a reservoir of infection for the spread. no proper treatment is made available to the public so that disease continues to persist.
hope this ans it