A given double stranded $DNA$ molecule is $1,00,000$ base pairs long. The length of this $DNA$ molecule will be
$10,000 nm$
$3.4 \times {10^4}$$nm$
${10^4}$ $nm$
$2,00, 000 nm$
Which one of the following does not follow the central dogma of molecular biology?
Read the following statements and choose the set of correct statements:
$(a)$ Euchromatin is loosely packed chromatin
$(b)$ Heterochromatin is transcriptionally active
$(c)$ Histone octomer is wrapped by negatively charged DNA in nucleosome
$(d)$ Histones are rich in lysine and arginine
$(e)$ A typical nucleosome contains $400\,bp$ of DNA helix
Choose the correct answer from the options given below:
Explain the role of scientist :
$1.$ Watson and Crick $(1953)$
$2.$ Erwin chargaff
Information flow or central dogma of modern biology is
Which of the following nitrogenous bases are common for both $RNA$ and $DNA$?