DNA Transcription

Genetic information can be carried by two kinds of molecules which is:-

• DNA and RNA

• DNA and chromosome

• RNA amd chromosome

RNA molecule that carries genetic information from the genes into the rest of the cell is known as :-

• messenger RNA (mRNA)

• transfer RNA(tRNA)

• ribosomal (rRNA)

Transfer of information DNA called as :-

• Transcription

• Duplication

• Replication

RNA has

• ribose sugar

• deoxyribose sugar

• N-Acetylglucosamine (GlcNAc)

Deoxyribose has one ----- oxygen atom than ribose

• less

• more

• pair

In RNA, base thymine (T) is replaced by

• Uracil (U)

• Adenine (A)

• Guanine (G)

• Cytosine(C)

DNA --- RNA ---

• Double stranded, single stranded

• Single stranded, single stranded

• Double stranded, double stranded

• Single stranded, double stranded

Sequence of the new RNA molecule = sequence of the DNA

Which one kind of sequence of the DNA?

• the one not actually used during transcription

• the one actually used during transcription

1. 1. Binds to the DNA at the start of a gene

2. 2. opens the double helix

3. 3. manufactures an RNA message (molecule)

There are functions of : -

• RNA polymerase

• DNA Polymerase

• Activator protein

Direction of synthesis of RNA is

• 5' to 3'

• 3' to 5'