Because of the absence of the hydroxyl group, the ddNTP cannot make hydrogen bonds with the analogous base in the template strand.
When a Dideoxyribonucleotide is added to a DNA strand that is growing?The 3' hydroxyl (OH) group required to create the phosphodiester link between one nucleotide and the following during DNA strand elongation is absent from these chain-terminating dideoxynucleotides. As a result, the incorporation of a dideoxynucleotide prevents the developing strand from extending farther.
The Sanger technique uses capillary electrophoresis to produce sequence data and relies on the inherent features of DNA polymerase as well as terminator dideoxy-nucleotides (ddNTP) marked with certain fluorescent dyes.
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Spiders, ticks, horseshoe crabs, and scorpions all have a pair of claw-like appendages near their mouths used for feeding, defense, movement, and/or sensory reception. What are these appendages called?.
'Spiders, ticks, horseshoe crabs, and scorpions all have a pair of claw-like appendages near their mouths used for feeding, defense, movement, and/or sensory reception. These appendages are called chelicerae.
Spiders, ticks, horseshoe crabs, and many arthropods have claw-like appendages called Chelicerae which are used for feeding, defense, and movements. These jointed appendages are present near the mouth of some arthropods including spiders, ticks, and horseshoe crabs. The arthropods due to the presence of these chelicerae are known as the Chelicerata.
The chelicerae appendage consists of a base segment which is called the "paturon", which has the ability to articulate with the cephalothorax and a fang portion that can articulate with the base segment as well. Almost all spiders have the presence of venom glands and are able to inject the venom through openings that are present near the tips of their respective fangs when they are biting prey.
They are also considered to be mouthparts of the arthropod group that includes many varieties of arthropods. They are commonly referred to as "jaws” and may be shaped as either articulated types of fangs or the one that is similar to pincers.
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The intense color and elegance of the psalter of saint louis is thought to imitate what medium?
The intense color and elegance of the psalter of saint louis is thought to imitate stained glass.
In the arts, stained glass is coloured glass that is used to create ornamental windows and other light-through objects. All coloured glass is technically "stained," or coloured, by the addition of different metallic oxides while it is still molten. However, the term "stained glass" now generally refers to the glass used to create artistic or illustrative windows. The distinctive colour harmonies of the stained-glass window are less the result of any unique glass colouring technique than they are the result of the use of particular transmitted light characteristics and the behaviour of the human eye in response to light. The intense color and elegance of the psalter of saint louis is thought to imitate stained glass.To learn more about stained glass.
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within how many hours must cooked tcs food be cooled
TCS food should be cooled within six hours. According to the US Food and Drug Administration (FDA) guidelines, cooked TCS food should be cooled within six hours.
Cooling food down rapidly is important to prevent the growth of bacteria and other harmful pathogens that can cause foodborne illness.TCS refers to foods that require time and temperature control for safety, such as meat, poultry, fish, dairy products, and cooked rice. When these foods are cooked and then left at room temperature for too long, bacteria can grow and multiply quickly. To prevent this from happening, it's important to cool TCS foods down as quickly as possible.
The FDA recommends using one of the following methods to cool TCS foods:
Divide large quantities of food into smaller portions, then place the containers in an ice bath or under cold running water.Stir the food occasionally to help it cool more quickly. Place hot food in shallow pans, then place the pans in the refrigerator or freezer. Make sure the pans are no more than two inches deep so that the food can cool quickly. Store the food in a cool, dry place that is below 41 degrees Fahrenheit. Avoid placing hot food in the refrigerator or freezer, as this can cause the temperature to rise and compromise the safety of other foods.To know more about Food and Drug Administration please refer:
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Steven created a graph to show his motion leaving work. He measured his instantaneous velocity at regular time intervals. The graph below illustrates his data. Four segments of his journey are marked A, B, C, and D.
velocity vs time graph;data points (0, 0), (1, 1), (2, 5), (3, 4), (4, 3), (5, 2), (6, 2), (7, 4). Segment A is from (0, 0) to (1, 1), segment B is from (1, 1) to (2, 5), segment C is from (2, 5) to (5, 2), segment D is from (5, 2), (6, 2)
During which journey segment would you expect Steven to have a negative acceleration?
A
B
C
D
Answer:
decrease in the graph which would make the answer
Explanation:
Negative acceleration is a decrease in the graph which would make C the answer
C = ANSWER
Steven would experience negative acceleration, or deceleration, during journey segment C. This is determined by identifying the segment where his velocity decreases over time.
Explanation:Based on the given velocity vs time graph values, one would expect Steven to experience negative acceleration during journey segment C. This conclusion can be reached by understanding that negative acceleration, often interpreted as deceleration, occurs when velocity decreases over time. In segment C, we see this exact situation, where Steven's velocity falls from 5 to 2 over the period from time 2 to time 5. In contrast, all other segments show either a constant or positive rate of change in velocity, indicating either no acceleration (segment D) or positive acceleration (segments A and B). Thus, the only segment with instantaneous negative acceleration is segment C.
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PLZZZZZZZZZZZZZZZZ HELPPPPP
1. What are the primary organs of the urinary system?
A. kidneys
B. lungs
C. blood vessels
D. hormone secreting glands
2. Which structure in the nephron carries out the process of filtration?
A. glomerulus
B. collecting duct
C. loop of Henle
D. proximal convoluted tubule
3. What is the name for the fluid that collects in Bowman's capsule?
A. blood plasma
B. filtrate
C. urine
D. None of these choices are correct.
4. Which part of the nephron carries out most of the reabsorption of nutrients into the blood?
A. Bowman's capsule
B. distal convoluted tubule
C. loop of Henle
D. proximal convoluted tubule
5. Which type of pathogen is not made up of cells?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses
6. Which type of pathogen is made up of a single prokarytotic cell?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses
7. Which of these pathogens is made up of eukaryotic cells?
A. animal pathogens
B. fungi
C. protozoa
D. All of these choices are correct.
8. What is the only type of pathogen that can be treated with antibiotics?
A. animal pathogens
B. bacteria
C. fungi
D. protozoa
E. viruses
9. Which of the following is a part of the non-specific immunity?
A. B lymphocytes
B. plasma cells
C. skin
D. T lymphocytes
10. Which of these cells is responsible for antibody-mediated immunity?
A. B lymphocyte
B. Helper T lymphocyte
C. Killer T lymphocyte
D. macrophage
11. Which of these cells is responsible for cell-mediated immunity?
A. B lymphocyte
B. plasma cell
C. T lymphocyte
D. phagocyte
12. Which of the following is true of antibodies?
A. They are made by B lymphocytes.
B. They are made by Helper T lymphocytes.
C. They are made by Killer T lymphocytes.
D. They are made by macrophages.
13. Which cells produce chemicals that cause the other parts of the immune system to function?
A. B lymphocytes
B. Helper T lymphocytes
C. Killer T lymphocytes
D. plasma cells
14. Which of the following remain after recovering from an infection and provide immunity?
A. memory cells
B. phagocytes
C. macrophages
D. plasma cells
15. Which of the following immune system cells are the hosts for HIV?
A. B lymphocytes
B. Helper T lymphocytes
C. Killer T lymphocytes
D. plasma cells
16. Which of these is an example of natural active immunity?
A. immunity after receiving a vaccination
B. immunity after recovering from a pathogen infection
C. a baby's immunity resulting from antibodies from its mother
D. None of these choices is correct.
17. Which of the following best explains how vaccinations result in ACTIVE immunity?
A. The vaccination causes a primary immune response and memory cells are retained for life.
B. The vaccination contains antibodies.
C. The vaccination contains lymphocytes from horses.
D. None of these choices is correct.
18. Which of the following practices contributes to bacteria that have resistance to antibiotics?
A. Prescribing antibiotics for diseases that are not caused by bacteria.
B. Self prescribing of antibiotics by people whenever they are ill.
C. Patients stop taking prescribed antibiotics when they begin to feel better instead of finishing the prescription.
D. All of these choices are correct.
19. Which of the following can result in an endemic disease becoming an epidemic?
A. The health of the host population is reduced by overcrowding or stress.
B. There is a drastic increase in the population of the vector of the pathogen.
C. The pathogen mutates to a more dangerous form.
D. All of these choices are correct.
20. What is the name for a disease outbreak that spans several continents or the entire world?
A. an endemic
B. an epidemic
C. a pandemic
D. All of these choices are correct.
Answer:
1. A
2. A
3. i dont know
4. D
5. E
6. B
7. D
8. B
9. i think skin? i dont know
10. B
11. C
12. i dont know
13. A - i think
14. A
15. B
16.i dont know
17. A
18.D
19. D or C
20. C
Which class of hormones binds to an intracellular receptor and directs new mrna and protein synthesis?
The class of hormones which binds to an intracellular receptor and directs new mrna and protein synthesis is called a steroid hormone.
What is a steroid hormone?This hormone is a steroid which acts as a hormone. There basically two groups of steroid hormones namely:
corticosteroids and sex steroids.Among the two groups of steroid hormones hormones, there are five types base on their receptor which they bind to.
The types of steroid hormone?Mineralocorticoids (corticosteroids)Glucocorticoids (corticosteroids) Androgens (sex steroids) Estrogens (sex steroids)Progestogens (sex steroids)Learn about steroid hormones here https://brainly.com/question/14145453
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how is prenatal androgen exposure related to differences in later behavior?
Prenatal androgen exposure refers to the male sex hormones that are secreted in large quantities by the testes of male fetuses.
Prenatal androgen exposure has been related to later differences in behavior in a number of ways: For example, women with higher levels of prenatal androgen exposure tend to show more "masculine" behaviors such as aggression and dominance. Similarly, men with lower levels of prenatal androgen exposure tend to show more "feminine" behaviors such as empathy and emotional sensitivity.
There is also evidence to suggest that prenatal androgen exposure may be related to later sexual orientation, with higher levels of prenatal androgen exposure being associated with a greater likelihood of same-sex attraction in adulthood.
Overall, prenatal androgen exposure appears to play an important role in shaping later behavior, although the precise mechanisms underlying this relationship are not yet well understood.
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5. Discuss at least two effects of human activities on your school community and how these effects on school community can affect lives in return
The effects of human activities on the school community that can affect lives in return may be associated with healthy eating habits and regular physical activity.
What are school community activities?The expression school community is associated with different activities in the school, which may be related with healthy food habits as well as performing regular physical activities. In general, these healthy habits are not followed in other settings such as occur in the holiday season.
School communities are well known to promote mental health and physical well-being in order to maximize the abilities of the students.
Therefore, with this data, we can see that school communities may be key to maintaining healthy habits associated with diet and physical activities, it is one important reason to assist to the school during the normal season and thus maintain a healthy mental and physical state (well-being state).
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know the following direction-related terms: anterior/posterior; superior/inferior; proximal/distal; rostral/caudal know the different type of neurons and glial (aka neuroglia) cells in the pns and cns, as well as their function know the organizational structure of skeletal muscles and nerves understand how a neuron interacts with a skeletal muscle fiber to cause a contraction; know the importance of the neuromuscular junction know the two types of bone ossification, and when each occurs during growth and development; which bones are developed through each physiological method know the difference compact and spongy bone, including location of each. where would you expect to find red bone marrow? know the clinical significance of the following: osteoporosis, osteomalacia, osteosarcoma, and arthritis know the clinical significance of atherosclerosis. how is this formed? know the purpose of a lymph node. what is a sentinel node?
To compare patrol lymph node biopsy results for overall survival (OS) and disease-free survival (DFS) (SNB).
Underarm or axilla axillary lymph nodes are present. The lymph nodes that breast cancer is most likely to spread to initially are known as sentinel lymph nodes. In order to determine whether breast cancer has progressed to the axillary lymph nodes, sentinel node biopsy is employed. Many patients experience no negative effects following a sentinel node biopsy. Some patients experience fatigue and soreness or injury at the cut (incision). Your breasts and underarms might only have slight swelling. Comparing sentinel lymph node biopsy (SNB) and elective neck dissection (END) for the surgical management of cT1-2N0 oral cavity squamous cell carcinoma in terms of overall survival (OS) and disease-free survival (DFS) (OCSCC).
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ALL that are correct (more than one): Which of the following are key differences between mitosis and meiosis?
mitosis produces 2 cells while meiosis produces 4 cells
mitosis produces cells of the same chromosome number as the parent cell while meiosis produces cells with half the chromosome number
mitosis is a type of cell division while meiosis is a type of cell multiplication
mitosis makes copies of body cells while meiosis produces reproductive cells (gametes)
Answer:
Mitosis and meiosis are nuclear division processes that occur during cell division.
Explanation: Mitosis involves the division of body cells, while meiosis involves the division of sex cells. The division of a cell occurs once in mitosis but twice in meiosis.
Is Shibuya City a marine or continental environment?
Answer:
Well, Shibuya City is located in the Tokyo Metropolis of Japan and since it is an urbanized area, it is an continental environment.
Please help with me with this!
Scientists say that most of the mass of an atom is located in the nucleus because
A. Protons and neutrons
B. Electrons
Answer:
A
Explanation:
Because most of their mass in the nucleus not only because protons and neutrons are heavier than electrons, but also because together, protons and neutrons outnumbered. "Hope this help"
What is the function of the brain structure indicated by the arrow?.
Answer:
What Is The Function Of The Brain Structure Indicated By The Arrow? Coordination Of Complex Motor Patterns Processes Visual Data Conscious Thought Controls Emotions And Hormone Production This problem has been solved!
Explanation:
which of the following is false about proteins? proteins are always made from one polypeptide chain. proteins are composed of many amino acids. proteins can also be called polypeptides. proteins result from the expression of genes.
False, Proteins are always made from one polypeptide chain.
Amino acids are the basic units of proteins. They are tiny organic compounds with an alpha (central) carbon atom coupled to an amino group, a carboxyl group, a hydrogen atom, and a variable component known as a side chain (see below). Peptide bonds, which connect several amino acids, help proteins create lengthy chains of amino acids. The biological process that links the carboxyl group of one amino acid to the amino group of a nearby amino acid results in the extraction of a water molecule, forming peptide bonds. A protein's main structure is thought to be the orderly arrangement of its amino acids.
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Mosquito repellent is sprayed on one arm and the other arm is not sprayed. The number of mosquito bites is counted after 2 hours. what is the control,independent variable, dependent variable of this sentence.
In this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
What is the dependent variable?The dependent variable is those that changes in the experiment, while the independent variable is not modified along the experimental procedure. Moreover, the control group is the sample in which the treatment isn't applied.
In conclusion, in this experiment the dependent variable is the number of mosquito bites, the independent variable is the type of repellent the control group is the population that is not sprayed.
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Does the youth service project or
civis organisation help the community
Answer:
ya the youth service project or
the youth service project or civis organisation help the community
if you were a tilapia grower and you wanted to maximize your profit what water temperature
The best water temperature for tilapia is 82° to 86° F which causes increase in production as well as in profit.
What is the best water temperature for tilapia?The best temperature range for optimum tilapia growth is 82° to 86° F. Growth negatively affected when the temperatures goes below 68° F and death will occur below 50° F. At temperatures below 54° F, the resistance to disease in tilapia decreases and they are subject to infections from bacteria, fungi and parasites. While on the other hand, if the temperature exceeds from 90° F, the growth is also negatively affected.
So we can conclude that the best water temperature for tilapia is 82° to 86° F which causes increase in production as well as in profit.
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explain the general sequence of events that follow lipophilic ligand binding to intracellular receptors
The binding of lipophilic ligands to intracellular receptors leads to the general sequence of events. Lipophilic ligands or hydrophobic ligands are compounds that are lipid soluble and can bind to lipid regions of proteins.
The intracellular receptors are cytoplasmic or nuclear receptors, so once the ligand binds to it, it enters the cell and then it will bind to the receptor, forming a ligand-receptor complex. The ligand-receptor complex then undergoes a conformational change, revealing the nuclear localization sequence, which allows it to pass through the nuclear membrane.
The complex then binds to specific DNA sequences, called hormone response elements (HRE), that are located in the regulatory region of target genes. Once the ligand-receptor complex binds to the HRE, it recruits co-activators that can either help remodel the chromatin structure or initiate transcription directly. Co-activators can either enhance or stabilize the transcription factor's binding to DNA.
Furthermore, co-activators help in recruiting the RNA polymerase II, transcription factors, and other associated proteins required for transcription. The general sequence of events following ligand binding to intracellular receptors can be summarized as ligand binding to the receptor → ligand-receptor complex formation → translocation to the nucleus → binding to HRE → recruitment of co-activators → initiation of transcription.
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A flock of geese flew South for 300 miles. It took them 2
hours to complete that 300 mile trip. What is the
velocity of the flock of geese?
Answer:
150 miles per hour
Explanation:
just divide 300 by 2 and you will get the answer
begins as a small erythematous papule around a hair shaft that becomes scaly. The hair breaks off. The lesions spread and form the typical ring pattern. Pruritus may be present
The described symptoms are indicative of a common fungal skin infection known as ringworm (tinea corporis).
Ringworm, or tinea corporis, is a superficial fungal infection of the skin that is caused by various dermatophyte fungi. It is highly contagious and can be transmitted through direct contact with infected individuals, animals, or contaminated objects.
The infection usually starts as a small erythematous papule (red bump) that develops around a hair shaft. As the infection progresses, the affected area becomes scaly and forms a circular or ring-shaped lesion with a raised border and clearer skin in the center. This characteristic appearance gives it the name "ringworm." The affected skin may be itchy (pruritus), leading to scratching and potential hair breakage.
Ringworm commonly affects areas of the body with high humidity and limited airflow, such as the groin, feet (athlete's foot), and scalp (tinea capitis). Treatment typically involves antifungal medications, either topical creams or oral medications, to eliminate the fungal infection and relieve symptoms. It is important to maintain good hygiene practices, avoid sharing personal items, and treat any underlying conditions that may contribute to the infection's persistence.
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evidence suggests that complex multicellular, water-dwelling organisms first appeared on earth a. 4 million years ago. b. 600 million years ago. c. in the early 1920s. d. 200 million years ago. e. 2 million years ago.
Water-dwelling organisms as complex multicellular first appeared on earth 600 million years ago.
Thus, the correct option is B.
А Virginiа Tech geobiologist with collаborаtors from the Chinese Аcаdemy of Sciences hаve found evidence in the fossil record thаt complex multicellulаrity аppeаred in living things аbout 600 million yeаrs аgo -- neаrly 60 million yeаrs before skeletаl аnimаls аppeаred during а huge growth spurt of new life on Eаrth known аs the Cаmbriаn Explosion.
Аround 600 million yeаrs аgo, the first multicellulаr orgаnisms аppeаred on Eаrth: simple sponges. Sponges аre the simplest of multicellulаr orgаnisms, with open cаnаls running through them thаt cаn soаk up nutrients from the wаter. Аs the most аncient lineаge of multicellulаr orgаnisms on Eаrth, pаleobiologists look for them in the rock record to determine when multicellulаr life аrose.
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pls help! In dragons, fire breathing is a sex linked (x- linked) trait. Fire breathing is a recessive condition carried on the x chromosome.
Identify the sex and if it is a fire breathing dragon or a non-fire breathing dragon
a) XX
b) XTY
c) XY
d) XXT
e) X*XT
What would be the genotype for each of these dragons?
a) Fire breathing female
b) Non-fire breathing male
c) Non-fire breathing female
d) Carrier for fire breathing female
Who is cub 712 parents in Lulu the lioness?
How is the author effective in offering different characters' points of view without shifting narrators?
A.
Nsue remembering Old Gao’s stories.
B.
Nsue racing to get the honey before he is stung.
C.
The exchange of dialogue between Nsue and his father.
D.
The internal doubt Nsue has, because Nandi’s offering is ready.
Help please!?!?!??!?!?????
Answer: A
Explanation: Hope this help :D
These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain? Is carbon moving into the air, moving out of the air, or both? a Carbon is only moving into the air, it is not moving out of the air. b Carbon is moving into the air and out of the air at the same time. С Carbon is not moving into the air, it is only moving out of the air. d With this information, there is no way to know for sure.
Answer:
A- carbon is only moving into the air ; it is not moving
In this case, the Carbon is moving into the air and out of the air at the same time (Option B).
What is the carbon cycle?The carbon cycle makes reference to how this elements flows from biotic to abiotic elements in an ecosystem.
The carbon cycle is fundamental for survival of biological systems in nature.In conclusion, the Carbon is moving into the air and out of the air at the same time (Option B).
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Name the 2 different types of endoplasmic reticulum and explain the function of each type endoplasmic reticulum to the cell . (ie - what does each one 'produce', or make for the cell)
Answer:
The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.
Explanation:
Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.
Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones.
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Which of the following would contain membrane-bound organelles? (select all that apply)
Prokaryotic Cells
Bacteria Cells
Eukaryotic Cells
Plant Cell
Virus
Animal Cell
Answer: Eukaryotic cells
Explanation: Eukaryotic cells contain all membrane bounded organelles.
golgi bodies, mitochondria, nucleus, vacuoles etc
When offspring produced by sexual reproduction move into different environments, new species sometimes emerge over time. Which characteristic of sexual reproduction allows this result to occur?
A) speed with which offspring are produced
B) number of offspring produced
C) diversity of the offspring produced
D) size of the offspring produced
Answer:
c) diversity of the offspring produced.
Explanation:
Because sexual reproduction involves gametes (sex cells with only half the number of chromosomes), each offspring produced is genetically unique (as they get a random selection of chromosomes from both parents). This allows mutations to occur, which may be beneficial (or not) in the environment. Over time, the offspring that have the favourable characteristics will survive more easily to reproduce, whereas those with less helpful characteristics will not. This means that the favourable characteristics will be passed on to the next generation, while the less favourable ones will not be time. If this occurs for many generations, a new species may emerge.
Which of the following greenhouse gases is the focus of current public discussion?
Answer choices
A ) Carbon Dioxide
B ) Methane
C ) Water Vapor
D ) Sulfur Hexafluoride
Answer:
a
Explanation:
bcoz op da grabiti of the earth
Identify the microscope used in most high school biology classes.