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2 years ago

What is a nucleus localized transcription factor and what is its function?

Biology

1 answer:

notka56 [123]2 years ago

4 0

Answer:

What role do transcription factors play in gene structure and function?

Transcription factors are proteins that bind to the upstream regulatory elements of genes in the promoter and enhancer regions of DNA and stimulate or inhibit gene expression and protein synthesis. They play critical roles in embryogenesis and development

Explanation:

You might be interested in

Term referring to the process in which certain compounds increase in concentration within biotic tissues as they move up through

melisa1 [442]

Answer:

a. Biomagnification

Explanation:

Biomagnification is the name given to the progressive accumulation of substances from one trophic level to another along a food chain. Thus, the substance will have its highest concentration in individuals who occupy trophic levels furthest from producers.

For biomagnification to occur, substances must be fat soluble (lipid soluble) and thus adhere to living tissues. Another feature of substances that undergo biomagnification is that they are generally not biodegradable or metabolized by the body.

The phenomenon is quite common with heavy metals (lead; mercury) and certain chlorinated and aromatic organic compounds with higher molecular mass, such as the insecticide DDT.

3 0

2 years ago

The crispr system involves the cas9 enzyme, which identifies specific nucleotides to be cut using a(n) ________ molecule as a gu

bonufazy [111]

Answer:

RNA

Explanation:

CRISPR system was discovered by a Japanese scientist. Naturally bacteria and many other prokaryotes have CRISPR system in their genome which they use as a self defense against a pathogen which is invading them. It consists of inter spaced, short palindromic nucleotide repeats which encode a guide RNA (gRNA). This guide RNA (gRNA) recognizes the target sequence on the pathogen. The gRNA is followed by Cas9 enzyme which along with the gRNA plays a very important role in breaking genome of the pathogen. Once the target gene is cut down the rest of the DNA can be rejoined by non homologous end joining.

But nowadays, scientists are using this system for genome editing and incorporating desired gene between the two ends which are cut down by CRISPR Cas9 system.

7 0

3 years ago

Read 2 more answers

The proteins around which human DNA is wound are

hoa [83]

The answer is option A)cyclins

7 0

3 years ago

When researchers are interested in studying questions, such as "What do infants really understand about the world?" and "How do

zepelin [54]

It’s D, cognitive. Cognitive development has to do with the mind.

4 0

2 years ago

The diagram shows the general structure of a lipid l, which consists of two main parts.

san4es73 [151]

Answer:

The correct answer is - carboxyl group.

Explanation:

Lipids are one of the major macromolecules that are made up of fatty acid and carboxyl groups as two main parts of the molecules. The most common type of lipid is formed with the glycerol associated with the fatty acid chain.

In the provided structure the circled part is the carboxyl group with the long fatty acid chain. However, glycerol belongs to the alcohol group.

Thus, the correct answer is - carboxyl group.

5 0

2 years ago