molecular basis of inheritance

molecular basis of inheritance

LETS GO DEEP INTO THE CHROMOSOMES...........😎

Poll

WHAT IS THE UNIT OF DNA CALLED?

• NITROGENOUS BASES

• NUCLEOSIDE

• NUCLEOTIDE

• ADENINE

Multiple Choice

PENTOSE SUGAR IN DNA

• RIBOSE SUGAR

• DEOXYRIBOSE SUGAR

• FRUCTOSE

• GLUCOSE

Multiple Choice

Ribose sugar is different from deoxyribose sugarBECAUSE RIBOSE SUGAR

• have 3^| OH

• have 2^| OH

• lack 2^| OH

• lack 3^| OH

Multiple Choice

nucleotide is made of

• pentose sugar &nitrogenous base

• pentose sugar,nitrogenous base and phosphate group

• nitogenous base and phosphate group

• pentose sugsr and phosphate group

Poll

name the bond that links the adjecent nucleotides in a poly nucleotide chain

• glycosidic bond

• hydrogen bond

• phosphodiester bond

• disulphide linkage

Multiple Choice

according to chargaff rule

A+G =

• U+T

• T+C

• C+U

• G+T

Multiple Choice

adenine ,thymine ,uracil and cytosine are the bases of

• DNA

• RNA

• DNA& RNA

• Polypeptides

Poll

on what basis Watson and Crick proposed the double helical model of DNA

• x ray diffraction by maurice wilkins and rosalind franklin

• chargaff rule

• based on both X ray diffraction technique and chargaff rule

Multiple Choice

DNA model proposed by watson and crick was

• A-DNA

• B-DNA

• C-DNA

• D-DNA

Open Ended

what is nucleosome made of?

Multiple Choice

name the part of chromosome ..that is lightly stained ,loosely packed and transcriptionally active

• heterochromatin

• euchromatin

• histone

• NHC