wilkins and franklin studied the structure of dna using

Answers

Answer 1
Rosalind Franklin was a chemist who used a technique called X-ray crystallography to study the structure of DNA.
Answer 2

Answer:

x ray diffraction pattern

Explanation:


Related Questions

The effect of pH on a certain enzyme is shown in the graph. At what pH would the enzyme be most effective?

Answers

Answer:

2

Explanation:

The enzyme will be the most effective between 8 and 10

The enzyme will show maximum activity in the range of pH between 8 and 10. This can be the enzyme's optimum pH as at this range it is found to be most effective. Thus, the correct option is 2.

What are enzymes?

Enzymes are the biocatalysts. They act as enzymes in the biochemical reactions by reducing the activation energy required by the reactants to form products. Enzymes remain unused in a reaction.

Enzyme activity depends upon different factors which include temperature, pressure, pH, etc. Enzymes show maximum activity at the optimum conditions of these environmental factors.

From the given graph, it can be interpreted that the enzyme shows maximum rate of action between the pH range of 8 and 10. Thus, this is the optimum range of pH.

Therefore, the correct option is 2.

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Give TWO reasons why mechanical digestion of food is important! Marking brainliest

Answers

Answer:

Mechanical digestion is a purely physical process that does not change the chemical nature of the food. Instead, it makes the food smaller to increase both surface area and mobility. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.

Explanation:

Hlww Xdxdxdxdxdxdxdxdxd

WILL YOU BE MY FRIEND ......

need help on this question!!!

Answers

Answer:

I think it's The Kingdom

This is a short question if anyone would be able to help me please i really need the help!!!!

Answers

What is it i hope i can helps you:(

according to the hydrologic cycle, once precipitation has fallen on land, what paths might the water directly take?

Answers

Answer:

it either soaks into the ground, infiltration, flows over the surface as runoff, or immediately evaporates.

All of the following among A-D apply to toll-like receptors EXCEPT A. they bind to PAMPS B. they induce the release of cytokines when activated C. they directly lyse bound pathogens D. when stimulated, they activate the immune system of the body E. there are no exceptions, A-D are all true

Answers

The toll-like receptors do NOT directly lyse bound pathogens (Option C). These protein receptors play fundamental roles in the innate immune system.

Toll-like receptors (TLRs) are single-pass membrane-spanning protein receptors that play fundamental functions in the innate immune system.

TLRs are differentially expressed on the surface of antigen-presenting cells (i.e., macrophages and dendritic cells) in order to recognize evolutionary conserved antigenic domains in different pathogenic microorganisms (e.g. bacteria).

TLRs initiate innate immune responses such as, for example, inflammatory responses, by identifying conserved pathogen-associated molecule patterns (PAMPs).

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Explain how a wholemeal sandwich with tuna and tomatoes will be broken down by the digestive system. Start the process from the mouth and end at the anus.​

Answers

Answer:

All of our energy and nutrition come by way of the gastrointestinal (GI) tract. It is an amazing machine well designed for digesting and absorbing nutrients and for shielding the rest of the body from microorganisms, viruses and other foreign matter. The GI tract spans from the mouth to the anus, with each separate organ having a role in digestion, absorption or excretion.Lastly, if you would like to learn more about yourself and how you can best reach your own nutritional and fitness goals, we encourage you to take a look at the following home health testing guides and resources:

Food Sensitivity Testing Guide

DNA Health Testing Guide

Guide to Life Extension Products

Home Health Testing Guide

Everlywell Home Tests Guide

Home Testing for Heavy Metals

Explanation:

(: tsorry hope to help

What is the function of mitosis?
a) To produce four unique cells for sexual reproduction
b) To change one type of cell to another type of cell,
c) To heal a cell that has been damaged,
d) To produce two identical daughter cells to sustain an organism

Answers

Answer:

c

Explanation:

sorry if it's wrong but yea

Answer:

d

Explanation:

PLEASE PLEASE SOMEONE HELP PLEASE BRAINILY I ASSURE YOU

Answers

Salt marshes, mangroves, and seagrass beds absorb large quantities of the greenhouse gas carbon dioxide from the atmosphere and store it, thus decreasing the effects of global warming. ... Carbon sequestration — the process of capturing carbon dioxide from the atmosphere, measured as a rate of carbon uptake per year

noaa

PLEASE HELP ME IM TIMED!

Answers

Answer:

Prokaryotic and anaerobic

Hope this helped

Scientists find cell with a genetic mutation in the cyclin dependant kinase gene. The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How would this impact the cell cycle of that cell

Answers

Answer:

The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How will this impact the resulting daughter cell? Explain. If cyclin molecules did not bind to CDK, the cell could not progress through the cell cycle.

Explanation:

I could be wrong...if I am I'm very sorry

C1 and C2 vertebrae are also known as:

A. axis and radius

B. atlas and axis

C. atlas and radial

D. sacrum and coccyx

Answers

Your answer will be B. Due to wide range of movement

Answer:

B

Explanation:

#platolivesmatter

As the troponin changes shape (due to binding calcium), it moves the ______ molecule to which it is attached, thus exposing the active sites on the G-actin molecules.

Answers

As the troponin changes shape (due to binding calcium), it moves the tropomysin molecule to which it is attached.

Once calcium binds to troponin and causes it to change it shape, it removes the tropomysin away from the binding site therefore effectively exposing the myosin binding sites.

This occurs during muscle contraction (movement) in the skeletal muscles.

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Answer: tropomyosin

Explanation: just took a quiz :)

Why does litmus paper go blue when ammonium hydroxide touches it

Answers

Litmus paper is an example of a pH indicator. A result of red means that the substance is acidic and blue means that the substance is alkaline.

Litmus paper goes blue what ammonium hydroxide touches it because ammonium hydroxide is alkaline

Hope this helps!

All nine essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity

Answers

Answer:

All 9 essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity? Combining foods that complement each others essential amino acids.

Explanation:

I hope this helps!

A fatal central nervous system disorder caused by more than 35 repetitions of a particular set of three base pairs is:

Answers

Answer:

Huntington's Disease

Explanation:

Headlands are formed through wave deposition

True or False

Answers

Answer: True

Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.

what type of muscle tissue is found in the wall of blood vessels

Answers

Smooth muscle is the answer

Answer:

cardiac muscle

they are mainly in the walls of the heart. it's contraction pumps blood that allows the heart to beat

why are antibiotics not effective against viruses?

Answers

Answer:

Viruses are different to bacteria; they have a different structure and a different way of surviving. Viruses don't have cell walls that can be attacked by antibiotics; instead they are surrounded by a protective protein coat. Antibiotics do not work on viruses, such as those that cause colds, flu, bronchitis, or runny noses, even if the mucus is thick, yellow, or green. Antibiotics are only needed for treating certain infections caused by bacteria, but even some bacterial infections get better without antibiotics.

List reasons you would or would not be concerned about eating genetically modified food

Answers

Answer:

Reasons I would be concerned about eating GMO foods:

Explanation:

The FDA declaring them to be "substantially equivalent" to non-GMO foods amid controversy that adequate scientific testing had not been done.

Michael Taylor being in the FDA when "substantial equivalence" was declared. Michael Taylor was a Monsanto employee before taking the position at the FDA.

The technology itself of taking a gene from one species and inserting it into another species (horizontal breeding). While that may be perfectly harmless it is new technology that many believe has not been proven to be safe.

Greater amounts of pesticides being used on GMO crops, which means more pesticides may be getting in our foods.

Crops that are engineered to produce an insecticide in the plant itself possibly having harmful health effects on us. There is some evidence that this may be happening.

When dissolved carbon dioxide (CO2) combines with ocean water it forms a(n)

Answers

Answer:

Carbon dioxide (CO2) dissolves in the ocean and reacts with water to form carbonic acid—which in turn generates bicarbonate, carbonate, and hydrogen ions. Calcium and carbonate ions combine to form the solid calcium carbonate crystals in their shells and skeletons.

Explanation:

at what point in meiosis do sister chromatids separate?

Answers

Answer:

anaphase II

Explanation:

This is when the string like things pull the sister chromatids and move them towards opposite poles. And then in the next step they began to separate as two different cells

question:

at what point in meiosis do sister chromatids separate?

Answer :

Anaphase

Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.

Help me Pleaseeeee its only for grade 5​

Answers

What help u need ?
....

Predict how the absence of phytoplankton in the coral reef could affect the entire community

Answers

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Producers– These are autotrophic organisms which make their food through photosynthesis. Green plants, algae, and chemo-synthetic bacteria are all examples of producers in marine habitats.

movement of xylem sap from roots to leaves __________.

Answers

Answer:

trandpiration

Explanation:

(i think)

The stomata are flattened stacks of sacs and the --(blank)-- is a sticky substance where complex organic products of photosynthesis are made.

A. stomata
B. stroma
C. grama

Answers

the answer is well stomata

Answer: C

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Estimating the weight of a dinosaur using only bones is difficult. Another way is by using scale models. The density of a dinosaur is scaled based on the average density of what living animal

Answers

Given what we know about the methods used by scientists to estimate the weight of a dinosaur, we can confirm that the density of a dinosaur is scaled based on the average density of the common crocodile.

Scaling the density of an extinct animal based solely on bones can be a daunting task. Since the bones themselves do not offer much information on which to base such a calculation, scientists are often forced to rely on other estimations. One such example is the bone scaling method.

This method relies on the genetic relationships shared between the dinosaur and current-day living animals. This offers the ability to compare the dinosaur to the known body mass of a modern-day living animal. The animal most commonly used is the crocodile, however, though this method can provide the scientists with a degree of accuracy, it lacks precision.

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a can of pop has a mass of 0.30 kg. what is the weight of that can on earth

Answers

Answer:

the same but I would need to see the answer

help plz and thank you

Answers

Answer:

A

Explanation:

A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.

B) not all cells have a nucleus. For example, prokaryotes have no nucleus

C)Not all cells have a cell wall.(Animal cells don't)

D) not all cells have mitochondria (Prokaryotes don't)

Answer:

I think it is D

Explanation:

Sorry If I'm wrong

Match each part of the lungs with the correct label.

Answers

Answer:

1 Right Horizontal Fissure

2 Left Superior Lobe

3 Mediastinum

4 Left Oblique Fissure

Explanation: correct for your numbers in edg

Lungs are the parts of the body where the exchange of the gases are taking place. The exchange of the gases  takes place at the alveoli.

What is the cavity in which the lungs are present in ?

Lungs are present in the pleural cavity.

Our body is constituting a pair of lungs that is the right lung and the left lung and inside a lung fluid is present which is called as pleural fluid that is present in order to make the structures safe and sound. 1. Left lung 2. Right lung.

3. It is the point at which the bifurcation of the trachea is being done. 4. It is the inferior lobe of the lungs.  Basically , the inferior lobes of lungs absorb their lymphatic fluid  towards the inferior tracheobronchial nodes . On the other thing, superior tracheobronchial nodes absorb out lymphatic fluid from upper lobes.

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