Transcription

What is the origin of DNA replication?

• Specific site at which the DNA replication starts

• At the site which blocks initiation

• Random site in the DNA

• At the site at which the replication is terminated

What happens at the start of a DNA replication?

• The phosphodiester bonds between the adjoining nucleotides break.

• The hydrogen bonds between nucleotides of two strands break.

• The lagging strand produces Okazaki fragments.

• The bonds between nitrogenous bases and deoxyribose sugar break.

In humans, where does DNA replication takes place?

• ribosomes

• mitochondria

• cell membrane

• nucleus

Complete the sentence:

 

RNA is synthesized on a DNA sequence in a process called _____________, which uses the enzyme ____________.

• replication, DNA polymerase

• transcription, RNA polymerase

• translation, RNA polymerase

• transcription, DNA polymerase

Chargaff determined that the DNA contains the same amount of adenine as ______________.

• Thymine

• Cytosine

• Guanine

• Uracil

In the RNA molecule, which nitrogenous base replaces Thymine?

• Uracil

• Cytosine

• Guanine

• Adenine

Which of the following are the bases of an RNA?

• adenine, cytosine, guanine, thymine, uracil

• cytosine, guanine, thymine, uracil

• adenine, cytosine, guanine, thymine

• adenine, cytosine, guanine, uracil

What do you call the process of copying a gene’s DNA sequence into an RNA sequence?

• transportation

• translation

• replication

• transcription

Which is produced in the process of transcription?

• rRNA

• mRNA

• new DNA

• tRNA

With what does the synthesis of a new strand of DNA begin?

• nucleotide

• RNA primer

• DNA unit

• polymerase