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irina1246 [14]
3 years ago
7

Regulatory proteins typically contain sites that can bind to other proteins or small molecules. Through such binding interaction

s, these sites can cause a repressor or activator to be inactivated or become functional. These are _____ sites.
Biology
1 answer:
nasty-shy [4]3 years ago
4 0

Answer:

Regulatory sites e.g enhancers and silencers

Explanation:

Gene expression involves the synthesis of gene products usually proteins and RNA. However, a certain product might not be needed at all or in small quantity. Gene regulation mechanism is the process that makes this happen. Gene regulation is the mechanism that acts to induce or repress the expression of a gene.

Gene regulation involves controlling the rate and manner of gene expression which is achieved through a set of regulatory proteins called transcription factors. Transcription factors bind to specific regulatory nucleotide sequences and help to turn "on or off" specific genes in the DNA.

Transcription factors can either be ACTIVATORS or REPRESSORS depending on whether they boost or inhibit gene expression. The binding sites for these regulatory proteins called TRANSCRIPTION factors are the regulatory nucleotide sequences on the DNA called enhancers and silencers.

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LDL (low-density lipoprotein) contains
Basile [38]

Answer:The correct answer is " a"

LDL contain protein,triglycerides,phospholipid and cholesterol.

Explanation:

Low density lipoprotein,or LDL,are complex aggregates of lipids and protein.Their function is to transport lipids (fats) around the body,in the bloodstream,and to the cells where its required.Apart from this,it also carries triglycerides,phospholipids and fat soluble vitamins.

Lipoprotein is composed of a hydrophobic core that is made up of polyunsaturated fatty acids and cholesterol molecules,along with a lipid membrane that contains protein called apolipoproteins.

There are 4 major classes of lipoprotein:

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7 0
3 years ago
While walking down the street, a cat jumps out of an alley into the pathway of an adult. They note that the man's heart is "raci
Sedaia [141]

Answer: The palpating heart race response is due to the sympathetic nervous system controlling the body's fight-or-flight reactions. 

Explanation:

The sympathetic nervous system is in charged of controlling the body's fight-or-flight reactions. When facing a threat, these responses defaultly prepare our body to flee from danger or face the threat head-on.

Many of the physiological responses you experience during times of emotional streaming, such as sweaty palms or a racing heartbeat, are regulated by the sympathetic nervous system, a branching of the autonomic nervous system.

5 0
3 years ago
What if I told you there were trillions of tiny bacteria all around you? It’s true. Microorganisms called bacteria were some of
Andru [333]
The main idea is that microorganisms are small and they live everywhere possible.
6 0
3 years ago
Read 2 more answers
A woman has her personal genome analyzed for the BRCA1 mutation after learning that her father is heterozygous and carries one m
puteri [66]

Answer:

a. 50%

Explanation:

<em>BRCA1 genes is a tumor supressor gene whose harmful mutation can cause hereditary breast ovarian cancer syndrome in both males and females. The BRCA actually stands for breast cancer.</em>

<em>Mutation in BRCA1 gene is heritable and every progeny of a carrier parent irrespective of the sex has a 50% chance of inheriting the trait from such parent, be it from the mother or the father.</em>

Hence, the correct option is a.

5 0
3 years ago
Cell prepares for mitosis
k0ka [10]
Interphase is the process in which the cell prepares for mitosis, but I don’t know if that is what you were asking. Hope this helps
5 0
3 years ago
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