Free! Free!! Free!!!

Free Crash Course for AFU Agriculture Entrance Appearing Students.
Click here for further information.


Did you know?? AFU has changed its question pattern for BSc. Agriculture Entrance Exam of 2078. Click here for further information.

GOOD NEWS, AFU has published a notice regarding the entrance exam of BSc. Agriculture for this year 2078. Click here for further information.

Most important facts about DNA, Histone protein and Chromosome

­čś▓Special features on number of chromosomes 

Highest number of chromosomes:-
In plant :- Ophioglossum reticulum (2n=1262)
In animal :- Aulochantha (2n=1600)

Lowest no. of chromosomes:- 
In plants :- Haplopappus gracilis (2n=4)
In animal :- Ascaris melanocephala (2n=2)

Important fact and relationship between DNA, Histone protein and Chromosome.

➡DNA is acidic in Nature. 
((@ DNA= Deoxyriboneucleic acid.
so it is easy to remember acidic nature of DNA.))
➡Histone protein is basic in Nature. 
➡Due to the balance between acidic DNA and basic Histone protein, chromosome overall become neutral. Since, DNA and histone protein binds together and coiled to form chromosome. 
➡It can be further clarified from this image.

Post a Comment