By the 1950s, the competition to describe the genetic materials structure began. dna was first examined by_____________ analysis, a technique for determining the three-dimensional atomic structure of a molecule.
Answers
By the 1950s, DNA was first examined by X-ray crystallography analysis, a technique for determining the three-dimensional atomic structure of a molecule.
X-ray crystallography analysis was used in the 1950s to determine the structure of DNA. This technique involves exposing a crystallized molecule to X-rays and analyzing the diffraction patterns created when the X-rays interact with the atoms within the crystal.
By studying these patterns, scientists can deduce the three-dimensional atomic arrangement of the molecule. During this time, there was intense competition among researchers to solve the structure of DNA, as understanding its structure was key to understanding its role in genetic inheritance.
Rosalind Franklin and Maurice Wilkins were prominent figures in this field, and their work on X-ray crystallography of DNA contributed to James Watson and Francis Crick's famous discovery of the double helix structure of DNA in 1953. This groundbreaking finding paved the way for numerous advancements in genetics and molecular biology.
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Related Questions
the primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain which oft he following common items would best represent the primary structure of a protein?
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Answer:
In a primary structure of protein the smaller subunits amino acids are linked by peptide bonds. The peptide bond is formed when carboxyl or C=O. The long string of bead represents differentamino acids formed in the ribosome
ugh this is due soon so help?
Thanks <3
Answers
Answer:
I think its the second one?? but not 100% sure
Answer:
the third one
Explanation:
remember
guanine pairs with cytosine
cytosine with guanine
adenine with uracil
thymine with adenine
according to cell theory which are made of cells check all that apply
Answers
Answer:
Cells are the basic building blocks of all living things.
Explanation:
I have no idea what the answers are but every living thing is made of one or more cells.
EyeMax based in Cambridge is a medical company specialising in reselling corrective lenses to reduce myopia in children for the UK and Spanish market. Prévoyance based in France hold the distribution rights for the rest of the EU. The business has recently received exclusive distribution rights for the Orthok range of lenses based on sales performance and customer satisfaction. The rights can be withdrawn if EyeMax fail to fulfil orders for this growing market.
- 50 ADV (average daily volume/package) UK mainland, 20 ES
- B2B 95% (hospitals, clinics and opticians), 5% B2C
- Order weight <0.5kg
- Single units have package dimensions of (20x15x2)cm
- Sometimes irregular shaped packaging is used for large orders of Orthok stands and posters which are promoted in the clinics. This accounts for 5 ADV (average daily volume/package)
- Order value is high (£540)
- Shipments are non-urgent so only a Standard service is needed
- Packages should not be left out in warm conditions for too long, optimal temp is 3 °C to 5 °C
Outbond
- 2 people responsible for preparing shipping labels taking 2.5 minutes per order
- Same people respond to any shipping queries and follow up with carriers
- Orders are manually keyed into the DHL shipping system held in WooCommerce
- Around 15% WISMO (Where is my order) calls received daily regarding delays and undeliverables RTS (Return-to-sender)
- It is important to know the exact shipping costs as soon as possible since invoicing the end customer especially in Spain, as it can affect margins, particularly for the promotional stands and posters
- Contracts with NHS England means proof of delivery needs to be retained for 12 months
inbound
- Express Freight shipments from the US are received once a month to the Cambridge site
- The carrier from the US has dated visibility tools and is only familiar with the old industry standard of EDIFACT (Electronic Data Interchange for Administration, Commerce and Transport) making visibility an issue. This affects stock allocation.
- EyeMax have found the products sometimes stick together upon arrival affecting the overall quality of the packaging
- For any urgent order unable to be immediately fulfilled, the customer is asked if they can wait up to 4 weeks or an internal purchase order is made to Prévoyance
- Prévoyance may despatch to the Cambridge site 3-5 times, often at the end of the month
Questions 1. From the information known, map out the supply chain
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Operations performance objectives trade off against each other as the performance of one objective can be improved by compromising on another.
These trade-offs are mostly due to resource constraints, and thus, they are a significant factor in operations management.
What are operations performance objectives?Operations performance objectives refer to the specific outcomes that an operation seeks to achieve. They are the goals of an operation. Organizations use operations performance objectives to create a strategy that addresses the objectives and outlines how to achieve them. Operations performance objectives are split into five categories: Cost: This objective refers to providing a service or product at the lowest possible cost.
Quality: This objective refers to providing a service or product that meets or exceeds customer expectations. Speed: This objective refers to delivering a service or product quickly. Dependability: This objective refers to delivering a service or product as promised. Flexibility: This objective refers to the ability to provide a service or product that meets customer needs. Operations performance objectives trade-offs Operational performance objectives trade-offs refer to the relationship between performance objectives. In operations management, achieving one objective often means sacrificing another. For example, achieving higher quality may mean incurring higher costs, which is a trade-off between quality and cost. In some cases, achieving one objective may enhance another. For instance, a quicker turnaround time (speed) can increase dependability and flexibility. These examples show that trade-offs can be positive or negative. The following are common trade-offs among operational performance objectives: Cost vs. quality: Offering higher quality goods or services will increase costs. Flexibility vs. speed: Being flexible slows down the speed of operations. Speed vs. quality: Higher speed may lead to lower quality. Dependability vs. flexibility: To be dependable, the operations need to be standardized, limiting flexibility.
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The question for this is: Four substances are involved in both photosynthesis and cellular respiration. They are sugars, water, oxygen, and carbon dioxide. Energy is also transformed from one type to another. Describe what happens to these four substances, light energy, and chemical energy during photosynthesis. Then write a simple equation for the substances and another for energy, using words and arrows to illustrate these changes.
My friends answer is:
Photosynthesis is the process by which plants use light energy to convert water and carbon dioxide into sugars and oxygen. During photosynthesis, light energy is absorbed by the plant and converted into chemical energy. The water and carbon dioxide are broken down into their component parts, and the oxygen is released into the atmosphere. The sugars are stored in the plant for later use. The equation for photosynthesis can be represented as light energy + water + carbon dioxide → sugars + oxygen. The equation for energy transformation can be represented as light energy → chemical energy.
D u m b it down to make it look like an 8th grader wrote it pls and thank u
Answers
Plants employ the process of photosynthesis to transform water and carbon dioxide into carbohydrates and oxygen.
Light energy is absorbed by the plant during photosynthesis and transformed into chemical energy. The oxygen is released into the environment, while the water and carbon dioxide are disintegrated into their component elements.
In the plant, the sugars are kept for future use. It is possible to write the photosynthesis equation as follows:
Light energy + water + carbon dioxide → sugars + oxygen.
Light energy → chemical energy can be used to describe the energy transformation equation.
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Question 13
What is condensation? Describe a way in which it can affect Earth systems.
12pt v
Paragraph
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Answer:
Condensation is a process in which water vapors changed into liquid state.
Explanation:
Condensation is a process in which water that is present in the vapors form changed into liquid state. Condensation greatly affect Earth systems because this process is responsible for the precipitation on the earth. Condensation occurs in the atmosphere when warm air rises in the atmosphere, cools and unable to hold water vapor. As a result, water vapors condenses to form cloud droplets that falls in the form of rainfall.
A typical human cell expresses about what portion of its protein-coding genes at any given time?.
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Answer:
20% is the answer!!!!!!!!!!!!!
Where are the majority of
chloroplasts found within plants?
A. In the cells of the roots.
B. In the cells of the leaves.
C. In the cells of the flowers.
Answers
Answer:
Leaves
Explanation:
I’m pretty sure that’s the answer because that’s where the sunlights hits and its how the plant makes energy.
which describe the role of the muscular system during physical activity? select all that apply. responses it controls the heart rate.it controls the heart rate. it controls the breathing rate.it controls the breathing rate. it forces venous blood to return to the heart.it forces venous blood to return to the heart. it allows for movement.
Answers
During physical activity, the muscular system plays the following roles are It allows for movement, It controls the heart rate, It controls the breathing rate and It forces venous blood to return to the heart.
During physical activity, the role of the muscular system includes:
1. Controlling the heart rate: The muscular system, specifically the cardiac muscles, helps regulate the heart rate to meet the body's demands for oxygen and nutrients.
2. Controlling the breathing rate: The respiratory muscles, such as the diaphragm and intercostal muscles, are responsible for controlling the breathing rate during physical activity to provide adequate oxygen supply to the body.
3. Forcing venous blood to return to the heart: The skeletal muscles contract and relax during physical activity, which helps pump venous blood back to the heart, aiding in circulation.
4. Allowing for movement: The muscular system enables movement by contracting and relaxing muscles, which generates force and allows for a range of motion in different parts of the body.
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Through what process might the water have changed and moved before and after the dinosaur drank it?
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Answer:
The water we drink now was the same water the dinosaurs drank. Discuss how the water cycle makes this statement accurate. Include different parts of the water cycle and what processes help move the water through each part.
Why porters place a round piece of clothes on their heads, when they have to carry loads?
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Answer:
so they can grip the pot well
potters usually place a round cloth which is mainly rough to get a grip and so that the pot does not fall
Which part of the virus houses the nucleic acid?
a) nucleus
b) capsid
c) nucleoid
d) plasmid
Answers
Answer:
The answer is b) capsid.
Explanation:
Answer:
b) capsid
Explanation:
To survive hunter-gatherers changed their environment bya.Burning the prairies to prevent trees from growing.B.Spreading plants to areas beyond where they originally grew.C.Both (a) and (b)d.Neither (a) nor (b)
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Which is an example of artificial selection?
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Answer:
The correct answer is Choice 3(last choice)
(A farmer crosses two kinds of corn. He produces a new, better tasting type of corn)
Explanation:
Hope this helps!
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______ Process of taking material into the cell by means of infoldings, or pockets of the cell membrane. This occuers when taking in ______ molecules, clumps of food or whole cells.
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Answer: Endocytosis, more
May not be right but ik the first one may be
Explanation:
"The {{c1::parasympathetic nervous system}} controls the ""rest and digest"" functions"
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The parasympathetic nervous system controls the ""rest and digest"" functions".
The parasympathetic nervous system is responsible for regulating many of the body's resting and digestive functions, such as slowing down the heart rate, stimulating digestion, and promoting relaxation.
It is often referred to as the "rest and digest" system because it is active during times of rest, relaxation, and digestion, as opposed to the sympathetic nervous system, which is responsible for the body's fight or flight response to stress or danger.
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Your classmate does not think that it is important to get your nutrient into your diet. Cite specific evidence to support the argument that the body requires your nutrient.
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Answer:
If you are not eating then you might go malnutrition and in order to not be malnutrition you would need to have nutrition in your body. In nutrition you will need to have the six essentials . The six essential nutrients are vitamins, minerals, protein, fats, water, and carbohydrates.
Explanation:
Which statement does NOT describe wind?
A Wind is the movement of air molecules from one place to another.
Wind is caused due to differences in air pressure.
The energy that generates wind comes from the Sun.
D Wind moves from low pressure to high pressure
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Phytoplankton are __
A) scavengers
B) producers
C) consumers
D) decomposers
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What are four possible phenotypes in this dihybrid punnett square?
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Using white tall (RRBB)and black short (rrbb) as an instance
Then I have white tall:9
White short:3
Black tall:3
Black short: 1
So this shows the phenotypic expression of a heterozygous with a dominant and recessive growth
The four phenotype in this dihybrid in a Punnett square is stated above as 9:3:3:1
Thanks
What is the main difference between cancer cells and normal cells?
A.normal cells and cancer cells both grow slowly
B.normal cells grow at a faster rate than cancer cells
C.cancer cells grow at a faster rate than normal cells
D.cancer cells and normal cells both grow rapidly
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plants release ___ billion tons of oxygen during the process of ___
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Plants release approximately 130 billion tons of oxygen during the process of photosynthesis. As a consequence of photosynthesis, oxygen is released by plants. However, it is estimated that plants actually emit 130 billion tonnes of oxygen annually through photosynthesis.
The biochemical process known as photosynthesis is used by plants, algae, and some bacteria to produce glucose (a form of stored energy) and oxygen from sunlight, carbon dioxide, and water. In particular, the chlorophyll, a type of green pigment found in the chloroplasts of plant cells, is where this process occurs.
Chlorophyll in plants absorbs sunlight during photosynthesis, which gives water molecules the energy to divide into hydrogen and oxygen. Using the hydrogen, glucose is created from carbon dioxide, which is subsequently used as an energy source by the plant's different cellular functions.
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What are the interests and conflicts that you see between the Lacks family, Johns Hopkins, the biotech firms selling HeLa, and the general scientific community? Given what you have read so far, how would you resolve those conflicts?
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Answer:
There are several interests and conflicts that can be identified between the Lacks family, Johns Hopkins, the biotech firms selling HeLa, and the general scientific community.
The Lacks family has a strong interest in protecting the privacy and dignity of Henrietta Lacks, and in ensuring that her cells are not used for commercial or other purposes without their consent.
Johns Hopkins has an interest in protecting its reputation and in ensuring that it adheres to ethical standards in its research practices.
The biotech firms selling HeLa have an interest in maximizing their profits and in protecting their intellectual property rights.
The general scientific community has an interest in advancing knowledge and in ensuring that research is conducted ethically and in accordance with best practices.
One possible way to resolve these conflicts would be to establish a clear framework for informed consent and benefit sharing, in which research institutions, biotech firms, and other stakeholders involved in the use of HeLa cells are required to obtain explicit consent from the Lacks family, and to share a portion of the benefits arising from the use of these cells with the family. This could be done through the establishment of a trust or other legal mechanism, which could be overseen by an independent body or group of experts.
Additionally, efforts could be made to increase transparency and dialogue between the different parties involved, including through the establishment of regular meetings and communication channels, and through the development of education and outreach programs to raise awareness about the ethical issues surrounding the use of HeLa cells
Explanation:
How does food storage and digestion take place in an amoeba?
Answers
Food storage and digestion take place in an amoeba occur through food vacuoles.
Amoeba is a monocellular organism that shows holozoic nutrition. It absorbs nutrients and food from the surroundings by contracting the vacuole. It has pseudopodia a drizzle-like structure that moves food into the vacuole. Inside this vacuole, there are lysosomes that contain the hydrolytic enzymes. These enzymes perform the breakdown of food particles. The digested food is then directly absorbed through the cytoplasm. This is circulated to organelles and stored for energy. After assimilation, the undigested food and waste are excreted out by fusing of food vacuole with the cell membrane.
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Answer:
Explanation:Amoebas are single-celled organisms that belong to group protozoa.Food storage and digestion occur through process called phagocytosis. Due the presence of flexible membrane,they can change their shape,viz essential for their feeding mechanism.
Psuedopods are temporary projections of its cell membrane which is extended when it encounters a food particle. These pseudopods surround the food particle forming a small cavity called food vacoule.
Once the food particle is enclosed within the food vacuole, the membrane of the vacuole fuses and forms a (digestive vacuole)phagosome which contains the food particle and digestive enzymes. The digestive enzymes in phagosome breakdown the food particle into smaller molecules. The enzymes include proteases for protein digestion, carbohydrases for carbohydrate digestion, and lipases for lipid digestion.
Smaller molecules are gradually absorbed into the cytoplasm of the amoeba, where they can be utilized for various metabolic processes. The digestion products are transported across the membrane of the digestive vacuole into the cytoplasm through diffusion.
Any undigested or indigestible material is eventually expelled from the amoeba's body by process of exocytosis. During exocytosis, the residual waste material is packaged into a vesicle and then released outside the cell.
Food storage and digestion in amoebas involve
1: the engulfment of food particles through phagocytosis,
2: the formation of digestive vacuoles,
3: enzymatic breakdown of the food,
4:absorption of nutrients into the cytoplasm,
5: and elimination of waste materials through exocytosis.
carry electrical charges at opposite poles.
A . nonpolar bonds
B. polar bonds
C. hydroelectric bonds
D. lonic bonds
Answers
Answer:d
Explanation:
can someone help please?
Answers
Answer: Food chain/web
Explanation:
______genetic traits that give an advantage to an individual and can be passed on to offspring
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Adaptive genetic traits that give an advantage to an individual and can be passed on to offspring.
What is adaptive trait ?Adaptation is an evolutionary process which fits organisms to their changing environment and increases their evolutionary fitness.
It can be phenotypic or adaptive trait in each individual organism evolved by natural selection.
Structural adaptations are the changes in external and internal structures of animals which help them to adapt their environment.
Behavioral adaptation include Action and behavior for survival against the changing environment.
Physiological adaptations help the organisms to live and survive in their environment with unique niches like hibernation and aestivation.
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An organ is a part of the body composed of two or more tissue types and is designed to perform at least one specific physiological function
Answers
10 points for each answer
Which of these statements best explains why a nightly breeze blows toward the ocean in coastal locations?
Cool air above the land rises and displaces the cooler air above the ocean.
Cool air above the ocean rises, making room for warmer air from the land.
Warm air above the land rises and displaces the cooler air above the ocean.
Warm air above the ocean rises, making room for cooler air from the land.
Answers
Your answer is D: Warm air above the ocean rises, making room for cooler air from the land.
But, why? The short answer would be that during the night, the ocean loses heat and that heat goes into the atmosphere. As this happens, winds from the land blow towards the ocean to replace that heat, leading to that wonderful nightly breeze at the beach.
Hope the explanation helped clarify a bit!
explain pesticides resistance. how does it accur? why is it a concern?
Answers
Answer:
Pesticide resistance at a population level, as opposed to just a few individual pests within a species, can occur after repeated exposure to a single type of pesticide. ... When a resistant population occurs, the pesticide is no longer useful for managing that specific pest and other management options must be sought out.