transcription begins at a promoter. what is a promoter?

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Answer 1

Answer:

A site in DNA that recruits the RNA Polymerase

Explanation:


Related Questions

anthropologists are suspicious of naturalizing discourses because

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-They ignore historical evidence showing how present-day arrangements contrast with earlier social arrangements

- They direct attention away from current social inequalities, insisting that these inequalities are so deeply rooted that attempting to change them would be impossible.

-They ignore variations in social arrangements in other present-day societies, which show that social life may be organized differently

Anthropologists are suspicious of naturalizing discourses because they ignore historical evidence showing how present-day arrangements contrast.

What are the roles of anthropologist?

An anthropologist is a person engaged in the practice of anthropology. Anthropology is the study of aspects of humans within past and present societies.

Creating research plans that address underrepresented topics. Executing research protocols that adopt a holistic study design. Promoting the co-creation of information by employing participatory approaches.

Anthropologists, people who conduct anthropological studies, identify aspects of being human as their focus. For example, one anthropologist might explore mating rituals of a small tribe in New Guinea.

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the three steps that are required for dna replication are

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Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.

The three steps that are required for DNA  replication are initiation, elongation and termination.

What is DNA replication ?

The process in which DNA of a cell under go duplication to produce two copies during S-phase of cell cycle called as DNA replication.

It involves 3 steps such as initiation step where the origin of replication of DNA molecule undergo unwinding into two DNA strands.

An incomplete unzipping by forming replication fork is created is catalyzed by the helicase enzyme.

Secondly in elongation step the DNA polymerase enzymes make the complementary sequence against each parent template strand.  

It is an unidirectional, one strand which is synthesized in a continuous manner called leading strand, the strand which is synthesized in a discontinuous manner called lagging strand with Okazaki fragments.

Termination occurs in the last step, when the parent molecule has been completely replicated.

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what modern day scientist use to learn the Ordovician Period

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Rocks from the Ordovician Period contain evidence that plants began colonizing dry land at this time. Most experts agree that the ancestors of land plants first evolved in a marine environment, then moved into a freshwater environment and finally onto land.

Ordovician Period, in geologic time, the second period of the Paleozoic Era. It began 485.4 million years ago, following the Cambrian Period, and ended 443.8 million years ago, when the Silurian Period began. Ordovician rocks have the distinction of occurring at the highest elevation on Earth—the top of Mount Everest.

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classify the materials that undergo decay. write decay and non-decay in the space provided for
1. fish
2.stick

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classify the materials that undergo decay. write decay and non-decay in the space provided for 2) stick

Sofia’s favorite meal is breakfast, and she is careful to include healthy components along with her favorite foods. She knows breakfast helps to keep her energy levels up until lunch. Sophia's digestive system helps her body get energy from food. How do the nutrients from food get to the body's cells? A. The nutrients are distributed by the digestive system to the parts of the body that need them. B. The nutrients are picked up and transported around the body by blood from the circulatory system. C. The nutrients are absorbed directly into the cells that need them. D. The circulatory system brings nutrients to the digestive system to be processed for the cells.

Answers

Answer: c

Explanation:because it needs cells I think…

The nutrients from the food get to the cells of the body by the action of two organ systems i.e. the digestive system and the circulatory system.

What is the role of the digestive system?

The digestive system may be defined as a type of organ system that significantly deals with the breakdown of food substances into simpler components that can easily be consumed by the body.

According to the context of the question, the food that we eat reaches the stomach through the esophagus where multiple enzymes perform their roles. After the stomach, the food may be passed to the small intestine which is absorbed here and then the nutrients assimilate in the blood.

Through the blood, the nutrient can be transported around the body by blood from the circulatory system. Thus, the correct option for this question is B.

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What is the correct abbreviation for pan troglodytes (chimpanzee)?.

Answers

Answer:

The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.

Explanation:

Hope this helps you :)

as a microbiologist you have been asked to investigate the regulation of a novel gene in a bacterial species. given what is known about bacteria, the logical place to begin your investigation is

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The logical place to begin your investigation is TRANSCRIPTIONAL CONTROL. This field investigates the differential expression of genes.

Transcriptional control refers to the study of how genes are differentially expressed in the genome of cells.

In prokaryotic organisms (e.g., bacteria), genes are expressed in clusters known as operons.

An operon is a group of genes under the control of a single promoter sequence.

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2. Organisms that are made up of more than one cell are called
a. viruses
b. bacteria
c. unicellular
d. multicellular

Answers

Answer:

Multicellular

Explanation:

They are composed out of more than one cell meaning it can't be unicellular. It can not be a virus or bacteria either because it is only identified as a cell made up of more than one cell, not the effects of what the cells do. Hope this helped!

Answer:

multicellular

learnt in school

What phase of mitosis is pictured below?

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Answer:

Its a Anaphase

because the chromatids of each chromosomes have separated and are moving towards the poles

what are two terms used to describe organisms such as humans

(ecology)

Answers

Answer:

Carnivores omnivores reproducers maybe..lol

the number of phenotypes in a population is determined by

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Answer:

The number of phenotypes produced for a given trait depends on how many genes control the trait.

Explanation:

Based on heredity, the number of phenotypes in a population is determined by the number of alleles for that triat as well as the nature of the alleles.

What is a phenotype?

A phenotype is a physical expression of a gene.

The phenotype of an organism is influenced by the inherited alleles for that gene that an organism has.

Alleles are alternate forms of a gene.

Alleles may either be;

dominant,recessive, incompletely dominant or co-dominant.

The phenotype of that organism will thus depend on the nature of the alleles of that gene or trait.

Therefore, the number of phenotypes in a population is determined by the number of alleles for that triat as well as the nature of the alleles.

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What should be done with the contents of
a composter? Explain your reasoning.

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Answer:

Finally, the number of times the pile is turned influences composting speed. By turning more frequently (about every 2-4 weeks), you will produce compost more quickly. Waiting at least two weeks allows the center of the pile to heat up and promotes maximum bacterial activity. The average composter turns the pile every 4-5 weeks.

When turning the compost pile, make sure that materials in the center are brought to the outsides, and that materials from the outside edges are brought to the center.

With frequent turning, compost can be ready in about 3 months, depending on the time of year. In winter, the activity of the bacteria slows, and it is recommended that you stop turning the pile after November to keep heat from escaping the pile's center. In summer, warm temperatures encourage bacterial activity and the composting process is quicker

Using compost in the yard

Incorporate compost into your garden as you prepare the soil in the spring. Cover the area with 3-4 inches of soil and till it in to at least the upper 6 inches of soil. Add compost to soil in vegetable gardens, annual flower beds, and around new perennials as they are planted.

You may also use compost as mulch around flower beds, vegetable gardens, or around trees or shrubs in landscape beds. Apply a 3 inch layer. Be careful not to apply mulch close to the main stem or trunk of the plant.

Explanation:

When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?.

Answers

i dont know why wont you ask your dad

the hair cells that detect sound vibrations lie on the ________ membrane.

Answers

Answer:

Basilar

Explanation:

what is the purpose of a broth in a microbiology laboratory

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In microbiology laboratory, broth is very vital. Its purpose is to provide growth medium for the available bacteria necessary for working on the nutrients. Broth gives steady and constant nutrients for the bacteria to quickly reproduce. It is normally a clear liquid made from bones, meat or vegetables.

What controls circadian rhythms in humans? Explain how this process works.

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Circadian rhythms are regulated by small nuclei in the middle of the brain. They are called the suprachiasmatic nuclei (SCN). Nuclei act as control centers. The SCN are connected to other parts of the brain.

1. Which of the following can cause a short circuit? A.When a wire breaks B.When theh insulation around a wire is frayed C.When the battery runs out of electricity D.When there is no resistor in the circuit.​

Answers

Answer:

When the insulation around a wire is worn or frayed.

Explanation:

Im on the quiz!

Answer:

When the insulation around a wire is worn or frayed.

Which of the following best describe a chemical property of a substance. *

A. the amount of material used
B. the ability of a substance to undergo chemical change
C. the behavior of material when heated
D. the color of the product

Answers

Answer:

Explanation:

option C

Chemical properties, such as combustibility, are generally observed as the identity of a substance changes and one or more new substances form.

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The Correct choice is ~ B

The ability of a substance to undergo chemical change

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Describe any other local examples of relationships between organisms that may influence population numbers?

Answers

Answer: trees, flowers, bees

Explanation:

Mitosis is a type of cell division. organize the images below to show the steps of mitosis.
(QUICK PLZ)

Answers

Answer:

i believe its the first

Explanation:

dna is a double-stranded molecule made up of complementary, antiparallel strands. based on what you know about complementary base pairing, fill in the rest of the details in the figure.

Answers

The details in the figure correspond to the elements that the DNA strands have in their ends. Also, they correspond to the antiparallel strand with the complementary bases.

The DNA has two antiparallel strands with complementary bases (thymine, adenine, guanine, and cytosine). That is to say, that T pairs with A and G with C. Also, they have specific elements in their ends.

The 3' strand in its end has a hydroxyl (OH) group.The 5' strand in its end has a phosphate group.There is a complementary strand with its respective nucleotides that will pair with the other strand according to their specific bases (A-T; C-G)

In conclusion, the top left end of the 3' strand has a hydroxyl group, while the top right, the 5', has a phosphate group. The complementary strand will go the other way round, from 5' to 3', so the hydroxyl and phosphate groups would be on the right and the left, respectively. The bottom strand is the complementary one, and it runs from 3' to 5'.

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when fatty acid metabolism creates more acetyl-coa than can be handled in the citric acid cycle, the excess acetyl-coa is converted into ________.

Answers

Answer:

Ketone Bodies

Explanation:

If excess acetyl CoA is created and overloads the capacity of the Krebs cycle, the acetyl CoA can be used to synthesize ketone bodies.

Mastication is performed by which of the following accessory digestive organs?

Answers

Answer:

d. All of the above

Explanation: is correct

Almost end of semester, HELP!!

Specialized structures are expressed with the help of mRNA. What role does mRNA play? (5B)



Assisting with replication by producing glucose


Creating bonds to form large polymers


Providing information from DNA that is used to form proteins


Making energy available for cellular activities

Answers

Answer:

The answer is C Providing information from DNA that is used to form proteins

Explanation:

i took the test

The statement that demonstrates the role that mRNA play in protein synthesis is as follows:

It provides information from DNA that is used to form proteins.

Thus, the correct option for this question is C.

What is Protein synthesis?

Protein synthesis may be defined as a type of biological process through which polypeptide chains are formed from coded combinations of single amino acids inside the cell. The process of protein synthesis terminates with the help of two processes:

Transcription.Translation.

The process of transcription involves the copying of a DNA sequence of a gene in order to make an RNA molecule. This RNA molecule is known as mRNA which determines the linkage of DNA from the manufacturing of the proteins. This process is carried out in the nucleus of the cell.

While the process of translation involves the synthesis of proteins using the genetic information carried in messenger RNA (mRNA). This process is carried out in the cytoplasm of the cell.

Therefore, the correct option for this question is C.

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Which procedure will determine if water temperature affects the weathering of sedimentary rocks?

Answers

Answer:

Sedimentary.

Explanation:

Sedimentary will determine if water temperature affects the weathering of sedimentary rocks.

How many mRNA codons are needed to make a protein that contains 5 amino acids?
a. 3
b. 5
c. 10
d. 12

Answers

Answer:

A.3

Explanation:

I got no explanation for this only thing i know is that 3 codes are needed as three basic is one codons maybe

A bacterium is inoculated into a tube of nutrient broth and incubated. After incubation, it appears turbid throughout, top to bottom, with the most amount of turbidty at the very top. This bacterium would be called a:

Answers

Answer:

facultative anaerobe

Explanation:

Answer:

Can I guess the answer just give me a sec

fish is high in omega-3 fatty acids, which are most beneficial for the __________ as mentioned in the video.

Answers

Based on the information given, it should be noted that omega-3 fatty acids is found in fishes and this is essential for the heart.

Omega-3 fatty acids are typically found in seafoods such as fatty fish, she'll fish, crabs, oysters, etc. They are vital on maintaining a healthy body.

It should be noted that omega-3 fatty acids are key to the structure of the cells that we have in our bodies. They're also a source of energy and vital for the heart and lungs.

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Describe prokaryotic cells. Include general characteristics and indicate the one feature that eukaryotic cells have that prokaryotic cells do not.















Please no links!

Answers

Answer:

prokaryotic cells — e.g. Bacteria

eukaryotic cells — e.g. Animal/Plant cells

Prokaryotic Cells are unicellular organisms that don’t have a nucleus, but have their DNA unbound (or uncompressed) within the cells cytoplasm, they also have circular structures (or rings) called plasmids which carry additional Genetic Information.

Specific Example:  A bacterium is an example of a prokaryotic cell, and it has a cell wall, cell membrane, and even a capsule.

One feature that Eukaryotic cells have which Prokaryotic cells don’t is a Vacuole (this is just one feature).

Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and don’t have organelles. Many also have a capsule or slime layer made of polysaccharide (ignore this word if you havent learn about it yet).

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How is water split into hydrogen and oxygen during photosynthesis? What substances get used up during photosynthesis? What type of energy is ATP? What is produced during glycolysis?

Answers

The atmosphere of water sources rely on oxygen and under water erosion source
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