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When the lac repressor binds to the lac operator site, RNA polymerase is prevented from transcribing which gene(s)?
what needs to occur for a fluorescent mineral to give off light?
Fluorescent minerals contain particles in their structure known as activators, which respond to ultraviolet light by giving off a visible glow. Ultraviolet light is a form of electromagnetic radiation invisible to the human eye. There are two classified ultraviolet wavelengths: longwave and shortwave.
A mouse's tail gets cut off. If the mouse has babies later, how will this affect the length of the tails of its offspring
Answer:
no it will not affect the length of the tails of any of the offspring.
Which gas is produced as a result of cellular respiration.
Answer:
Carbon dioxide
Explanation:
Which of the following is an example of a bond being traded on the secondary market?
Answer: D
Explanation: An investor sells a bond to another investor
An example of the secondary market is the investor sells a bond to another investor.
What is the secondary market?The secondary market is the market where the investor purchases and sells the securities.
An example could be the stock market.
Here the securities are traded when the company has been sold to provide on the primary market.
hence, An example of the secondary market is the investor sells a bond to another investor.
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Our sun is a low mass main sequence star at the middle of its life cycle. Explain how the
appearance of the sun's location on the HR diagram will change as it continues to the end of
its life cycle.
Answer:
Accordingly, when our Sun comes up short on hydrogen fuel, it will grow to end up a red monster, puff off its external layers, and after that settle down as a minimal white small star, at that point gradually chilling off for trillions of years. All incredible, in the long run — in around 5 billion years — our sun will, as well. When its supply of hydrogen is depleted, the last, sensational phases of its life will unfurl, as our host star extends to wind up a red Goliath and afterward shreds its body to consolidate into a white smaller person Explanation:
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1. Comparision of DNA sequences among single-celled organisms suggests that eukaryotes are more closely related to archaea than bacteria. The type of evidence is .
The type of evidence is indicating that eukaryotes are more closely related to archaea than bacteria is BIOINFORMATICS. This field of study compares nucleotides (DNA) sequences.
Bioinformatics is an interdisciplinary discipline that uses computational tools to interpret biological data.
This field of study (bioinformatics) compares nucleotides (DNA) sequences in order to determine the evolutionary level of shared ancestry between species.
For this purpose, bioinformatics uses the linear order of nucleotides in order to compare different species.
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Why are common cold viruses difficult to cure?(1 point)
A copy of the DNA is made from the viral RNA.
The virus leads to other viral infections such as the flu and HIV.
The viral genome mutates very quickly.
Vaccines prevent the development of a cure.
Answer:
You are very correct the answer is c
Correct option is ''The viral genome mutates very quickly.''
Viruses can't reproduce on their own as bacteria do, instead, they attach themselves to healthy cells and reprogram those cells to make new viruses. It is because of all of these differences that antibiotics don't work on viruses. Antibiotics and medications treat bacterial infections. These antibiotics cannot treat or cure a common cold as colds aren't caused by bacteria.
Common cold viruses are difficult to cure as the viral genome mutates very quickly.
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Yeast is added to bread dough because the gas released during respiration makes air pockets and give the bread a fluffy texture. Your friend tries to make bread using yeast, flour, water, and salt. The bread comes out flat. What ingredient is missing?
Answer:
I would say either oil or eggs?
Explanation:
Only rely on this answer if you're desperate! I don't know...
why would you not use green light and white light if you wanted to determine the dependence of specific color wavelengths on the rate of photosynthesis?
Given our understanding of the situation, we can confirm that the use of green or white light would not be ideal for the experiment at hand because it will not yield any useful information.
In this experiment, we wish to determine the dependence of specific color wavelengths on the rate of photosynthesis. The use of white light for this experiment will defeat the purpose, given that white is the naturally occurring color of light and the available data on this is vast.
Furthermore, we would not use green colored light because it will not be effective. The effectiveness of the color of light that we decide to use will be based on the absorption rate of the light at a cellular level. Green light is known to not be well absorbed by the chlorophyll of plants and therefore will not be useful.
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Select all of the choices that are true regarding tides...
Spring tides occur when the gravitational pull of the sun and moon are in line with each other, while neap tides occur when the gravitational pull of the sun and moon are perpendicular to each other
Tides only occur in the ocean
Tidal forces are primarily caused by the moon's gravitational pull
Larger bodies of water have more noticeable tides
Tidal forces are caused by a combination of the gravitational pull of the Moon and the Sun
Spring tides occur when the gravitational pull of the sun and moon are perpendicular to each other, while neap tides occur when the gravitational pull of the sun and moon are in line with each other
Answer:
a,b,c,e
Explanation:
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What is ONE way in which geologists may utilize GPS and satellite mapping?
Which group lists the levels of genetic information in order from smallest to largest.
Smallest to Largest:
1. Nucleotide
2. Gene
3. Chromosome
4. Genome
Nucleotide, Gene, Chromosome and Genome is the levels of genetic information in order from smallest to largest.
What is Chromosome?Chromosomes are the thread-like structure made up of protein (histones) and a single molecule of DNA which carries all the genetic information in it. It is located in nucleus.
Human have 23 pairs of chromosomes including pairs of 22 chromosomes (i.e. Autosomal Chromosomes) and 1 pair of Sex Chromosome (XX or XY).
Each pair contain two Chromosomes inheriting from the parents, half from mother and another half from the father.
Each chromosome have a point which is constricted in the middle known as Centromere, which divides chromosomes into two arms i.e. short arm “p” and long arm “q”.
Thus, Nucleotide, Gene, Chromosome and Genome is the levels of genetic information in order from smallest to largest.
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what factors do you predict might influence the likelihood of mutations occurring in viruses?
The factors which might influence the likelihood of mutations occurring in
viruses is Spontaneous nucleic acid damage and replication inhibition.
Viruses are pathogenic micro-organisms which mutate rapidly than the
humans do. Its ability to mutate very rapidly inside the host cells is what
makes it unique and deadly.
Factors which might influence mutations in Virus include nucleic acid
damage and replication inhibition. When this occurs, the virus isn't able to
mutate thereby causing less damage to the host.
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which type of blood vessel drains blood from the glomerulus?
Answer:
the efferent arteriole
Explanation:
Blood is brought to the glomerulus by the afferent arteriole, and after the filtration process, the blood is carried away from the glomerulus by the efferent arteriole.
Choose all that apply. Which of the following is true in a comparison of your skin cells to your kidney cells?
1) conduct translation differently
2) contain different DNA
3) contain different chromosome
4) transcribe many different genes
5) conduct replication differently
6) have different transcription factors
7) contain different genes
Given our understanding of the mechanisms behind genetic expression, we can confirm that when comparing skin cells to kidney cells, the only correct option is option 4 which states that the cells "transcribe many different genes".
The human genome encodes for every gene in the human body. This genome sequence is stored in the chromosomes of cells. These chromosomes are identical for every single cell in the human body. Therefore, every cell contains the same DNA, genes, and transcription factors in its chromosomes.
What allows each cell type in the human body the ability to differentiate from one another and complete vastly different functions is the way in which these genes are expressed. Though every cell contains the entire genetic code, only some genes for each cell are transcribed, which results in a different combination of proteins in each cell and leads to the difference between skin and kidney cells (as just one of many examples).
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1 A wound that is deeper than wide, can cause damage to internal organs describes a(n)
A. Laceration
B. Puncture
C. Abrasion
D. Incision
E. None of these
Given the number of blood vessels in the retina, why do you suppose that you are not able to see them normally
Answer:
You can't see the blood vessels themselves because vision depends on a process that makes it impossible to see things that are stationary with respect to the retina. Light receptors in the retina respond only to changes in light reaching them, not to a steady image.
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The type of fossil fuel made from the remains of ancient plants that lived millions of years ago is A. peat B. coal C. oil D. natural gas E. synfuel
Answer is B coal
Explanation:
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What arctic animals will climate change affect? How will it affect these animals? (Site 1).
Answer: Narwhals, polar bears, and walruses will be affected the most.
Explanation:
Polar bears: The Arctic is warming about twice as fast as the global average, causing the ice that polar bears depend on to melt away. Loss of sea ice also threatens the bear's main prey, seals, which need the ice to raise their young.
Narwhals: The Narwhal's Arctic habitat is highly sensitive to climatic changes that result in increased atmospheric and ocean water temperatures. The Narwhal's annual migration from the north in summer to more southerly overwintering habitats exposes them to sea ice which is constantly expanding and receding. Because of the sea ice rapidly decreasing, narwhals could be exposed to new threats and noises.
Walruses: Habitat loss will be exacerbated for walruses by additional climate-change related factors such as ocean acidification, increased shipping and increasing development in the North, including oil and gas extraction, as well as increased disease and contaminant risks. biggest threat facing walruses is the loss of stable sea ice due to climate change. As a result of less sea ice, walrus are changing their behavior. Walruses feed on the ocean floor in the relatively shallow waters of the continental shelf, where the sea ice itself sustains a rich food web.
regulation of the cell cycle is dependent on cyclins and cyclin-dependent kinases. the key that allows a cell to progress beyond the restriction point is
The key that allows a cell to progress beyond the restriction point is the phosphorylation of specific proteins (for example RB) by Cdk. The cyclin-dependent kinases (CDKs) are able to phosphorylate different substrates.
Cyclins regulate the progression of the cell cycle by their interaction with cyclin-dependent kinases (Cdks).
This binding activates the Cdks, thereby converting them into functional enzymes that phosphorylate target proteins and thus regulate cell cycle progression by bypassing restriction points of the cell cycle.
CDKs can phosphorylate different substrates by transferring phosphate groups from adenosine triphosphate (ATP) to specific amino acidic residues in these substrates.
For example, CDKs phosphorylate Rb proteins and thus regulate their activity during the cell cycle.
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Why can populations of invasive species increase rapidly in new environments
Answer:
they have no preditors in that current enviroment that can or is used to eating them so they just grow with no resistance
Explanation:
Which of the following is stored in bone?
Answer:
d. All of the above
Explanation: is correct
Answer:
its all of the above. ya ur correct
Explanation:
During meiosis, two sets of chromosomes in a cell are divided among the nuclei of four cells resulting from the process. Each nuclei has
half the number of chromosomes as the original cell.
one–fourth the number of chromosomes as the original cell.
twice the number of chromosomes as the original cell.
the same number of chromosomes as the original cell.
Answer:
half the number of chromosomes as the original cell
Explanation:
Why did the developers of deep flight give it that name?
_______ are a result of hurricanes, which push massive amounts of water inland, causing severe damage.
Answer:
Warm ocean air rises into the storm
Explanation:
Most of us know that heat rises so when the heat from the ocean rises it adds into the storm and creates a low-pressure area under the clouds which then continues to build heat and the winds reach to around 74 MPH to be classified as a hurricane.
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When is it important to drink water?
Answer:
d. All of the above
Explanation: correct
Answer:
? why did you post this
Explanation:
Which pathogen poses the greatest risk to a researcher handling non-human primates if they are exposed and infected with the infectious agent:
Answer:
Cercopithecine Herpes virus-1 (B-virus)
Explanation:
Cercopithecine Herpes virus-1 (B-virus) pathogen poses the greatest risk to a researcher handling non-human primates if they are exposed and infected with the infectious agent.
What are pathogen ?pathogens are the biological agent that can cause a disease in another organism upon infecting and causes infectious diseases. ‘Pathogen’ is a or disease-causing organisms such as bacteria, viruses, fungi, protozoans and worms.
There are different types of pathogens such as Class 1 pathogen in which the species is not associated with infectious disease. Class 2 are the pathogen species cause disease in humans but not serious and the the preventive methods, treatments are available.
Class 3 pathogens include the species cause serious diseases in humans, but necessary prophylaxis and treatment are available; Class 4 pathogens include the species cause serious human disease and disseminate in the human population with no adequate prophylaxis or therapy exists.
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What type of molecule controls photosynthesis
Answer:
Chloroplasts, I believe
Explanation:
The segment of the nephron between the proximal and distal tubules that loops down into the medulla of the kidney and returns back to the cortex is called the
