molecular inheritance class 12 bio

Front

What does DNA have that RNA doesn't?

Back

Presence of thymine and presence of deoxyribose

Front

The steps (rungs) of the DNA ladder are made up of __________.

Back

nitrogen bases

Front

Which of the following is true of DNA but not of RNA?

• It is made up of a single strand of nucleotides.
• It contains the sugar deoxyribose.
• It leaves the nucleus to translate protein.
• It contains the nitrogen base uracil.

Back

It contains the sugar deoxyribose.

Front

Which of the following best represents the Central Dogma?

Back

DNA --> RNA --> proteins

Front

What is the nature of the strands of the DNA duplex?

Back

Anti-parallel and complementary

Front

If the total amount of adenine and thymine in a double-stranded DNA is 45%, what is the amount of guanine?

Back

27.5%

Front

DNA is a polymer made of ______

Back

nucleotides

Front

Nucleoside is made of

Back

sugar and nitrogenous base

Front

The nitrogenous base is linked to the sugar by _____________ bond

Back

N-glycosidic bond

Front

In a polypeptide chain, nucleotides are linked together by _____________ bond

Back

3'-5' phosphodiester