What is the Difference Between Upstream and Downstream DNA

Upstream is toward the 5' end of the RNA molecule and downstream is toward the 3' end. ... When considering double-stranded DNA, upstream is toward the 5' end of the coding strand for the gene in question and downstream is toward the 3' end.

1. Is upstream positive or negative?
2. Is transcription upstream or downstream?
3. Is the promoter upstream or downstream?
4. What does downstream mean in biology?
5. What direction is upstream?
6. Which direction is upstream DNA?
7. What direction is downstream?
8. What is downstream and upstream?
9. Why can nucleotides only be added to the 3 end?
10. Is TATA box a promoter?
11. What is a strong promoter?
12. What is upstream of a promoter?

Is upstream positive or negative?

Distances downstream from (negative numbers) and upstream from (positive numbers) the mouth of Steel Creek at which largemouth bass were relocated in the Savannah River. Vertical bars represent the number of relocations at progressively greater distances.

Is transcription upstream or downstream?

Downstream (or 3' to) is in the direction of transcription (or translation) whereas upstream (5' to) is in the direction from which the polymerase (or ribosome) has come.

Is the promoter upstream or downstream?

A promoter is a region of DNA that generally is located upstream of a gene and facilitates and regulates its transcription.

What does downstream mean in biology?

Downstream. 1. (Science: molecular biology) portions of dna or rna that are more remote from the initiation sites and that will therefore be translated or transcribed later. 2. Shorthand term for things that happen at a late stage in a sequence of reactions.

What direction is upstream?

English Language Learners Definition of upstream

: in the direction opposite to the flow in a stream, river, etc. : toward the source of a stream, river, etc.

Which direction is upstream DNA?

Upstream is toward the 5' end of the RNA molecule and downstream is toward the 3' end. When considering double-stranded DNA, upstream is toward the 5' end of the coding strand for the gene in question and downstream is toward the 3' end.

What direction is downstream?

Downstream means towards where the flow ends, at the opposite end of the waterway from the source.

What is downstream and upstream?

The terms upstream and downstream oil and gas production refer to an oil or gas company's location in the supply chain. ... Upstream oil and gas production is conducted by companies who identify, extract, or produce raw materials. Downstream oil and gas production companies are closer to the end user or consumer.

Why can nucleotides only be added to the 3 end?

DNA pol uses the energy provided by hydrolysis of the high-energy phosphate bond at the 5' end of the incoming nucleotide to add it to the 3' end of the growing DNA. ... Without the high-energy phosphate bond, the correct nucleotide can not be added. Without proofreading, life wouldn't be good.

Is TATA box a promoter?

A TATA box is a DNA sequence that indicates where a genetic sequence can be read and decoded. It is a type of promoter sequence, which specifies to other molecules where transcription begins. ... The TATA box is named for its conserved DNA sequence, which is most commonly TATAAA.

What is a strong promoter?

The strength of a promoter is the rate of transcription of the gene controlled by this promoter. The strong or active promoter means the rate of transcription is high; and the weak or inactive promoter means the rate of transcription is relatively low.

What is upstream of a promoter?

A promoter is a regulatory region of DNA located upstream (towards the 5' region) of of a gene, providing a control point for regulated gene transcription. The promoter contains specific DNA sequences that are recognized by proteins known as transcription factors.