MYTUTOR SUBJECT ANSWERS

507 views

Explain the process of transcription in Eukaryotes

Transcription is the process by which a DNA sequence is copied into a complementary RNA sequence. RNA polymerase binds to the promoter region of the DNA chain and causes the unwinding and separation of the DNA strands, melting the bonds between the strands. The RNA polymerase binds nitrogenous bases in a complementary manner to the antisense strand (uracil pairs with adenine, cytosine pairs with guanine). This new strand will be identical to the sense strand, but with uracil instead of thyamine. RNA polymerase creates phosphodiester bonds between bases, releasing two phosphates in the process as ATP is converted into ADP. RNA polymerase synthesises an RNA strand in a 5' - 3' direction until it reaches the terminator region. At the terminator, RNA polymerase and the newly formed RNA strand both detach from the antisense template, and the DNA rewinds. Post-transcriptional modification is necessary in eukaryotes in order to produce mature RNA.

Heather J. IB Biology tutor, A Level Biology tutor, GCSE Biology tuto...

6 months ago

Answered by Heather, an IB Biology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

20 SUBJECT SPECIALISTS

£22 /hr

Anna Liisa J.

Degree: Biomedical Science (Bachelors) - Kings, London University

Subjects offered:Biology, Economics+ 1 more

Biology
Economics
Chemistry

“My name is Anna Liisa Jalakas and I am a biomedical sciences student. I completed my IB diploma in June of 2016 where I achieved a total of 40 points with a 7 in Biology and Economics, and a 6 in Chemistry. I also have IGCSE qualifica...”

£24 /hr

Julia M.

Degree: Sustainable Agriculture and Food Security (Masters) - Edinburgh University

Subjects offered:Biology, Maths+ 1 more

Biology
Maths
Chemistry

“Enthusiastic friendly tutor looking for curious and ambitious students for fun and relaxed lessons”

£24 /hr

Eleanor H.

Degree: Biochemistry (Bachelors) - Bristol University

Subjects offered:Biology, Maths+ 1 more

Biology
Maths
Chemistry

“ABOUT ME: I am a biochemistry student, currently studying at the University of Bristol, and have had a passion for the natural sciences from a very young age. I am patient, hardworking and experienced, having tutored students in Maths...”

About the author

Heather J.

Currently unavailable: for new students

Degree: Biological sciences (Bachelors) - Bristol University

Subjects offered:Biology

Biology

“About Me: I am a second year Bristol University student studying Biology. Since a young age I have been enthusiastic about anything related to nature and wildlife and, since starting to study biology, my interests have expanded into m...”

You may also like...

Posts by Heather

Explain the process of synaptic transmission

Explain the process of transcription in Eukaryotes

How could species have evolved from an ancestor such as Archaeopteryx?

Other IB Biology questions

Describe why DNA replication is semi-conservative

Outline three outcomes of the sequencing of the complete human genome.

What are the structural and functional differences between arteries and veins?

What is the role of auxin in plant phototropism?

View IB Biology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok