1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
baherus [9]
3 years ago
11

Explain how the work done by rosalind franklin and maurice wilkins helped inform watson and cricks model of the structure of dna

Biology
1 answer:
strojnjashka [21]3 years ago
3 0
Rosalind Franklin and Maurice Wilkins conducted experiments using X-ray crystallography to study the structure of the DNA. Their experiments produced the famous photo 51, the first evidence on the structure of the DNA. Their work showed that DNA is double-stranded and forming a helix. They also showed that the nitrogenous bases are on the inside of the strands and that the phosphates are on the outside. Watson and Crick used these observations to develop their model on the molecular structure of the DNA. 
You might be interested in
The class of disorders marked by extreme and inflexible characteristics that often cause impaired social and occupational functi
Inessa05 [86]

Answer:

Personality.

Explanation:

The mental disorders affects the thinking ability of the individual. The mental disorder individual shows abnormal behavior in the society and might feel anxiety or feel awkward among the people.

The personality disorder is a type of the mental disorder in which the individual have unhealthy thinking level. This disorder affects the social status and his personality in the society. The occupational functioning become improper and requires the proper medical treatment.

Thus, the answer is personality.  

4 0
3 years ago
A scientist is using a species of green algae to study the electron transport chain in photosynthesis. He uses a laser to inacti
jeka94

Answer:

D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.

Explanation:

The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.

The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.

In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.

3 0
3 years ago
Digestive problems can occur at nearly any point in the digestive process. Some problems are minor, like occasional heartburn, i
Kryger [21]

Answer:

a. People with celiac disease should include foods with dietary fiber such as beans, fruits, vegetables, brown rice, and quinoa.

e. Home-cooked meals are a good way to increase variety and reduce the cost of a gluten-free diet.

Explanation:

Celiac disease is an autoimmune disease, as stated above. This disease causes the defense cells of an organism to attack the stomach cells causing an inflammation that is extended and stimulated by the glutem. As a result, the individual has diarrhea, constipation, weight loss, anemia, a feeling of fullness, colic, abdominal discomfort, severe pain and may even develop ulcers and cancers.

Glutem is a protein found in wheat, barley and rye and for that reason, individuals with this disease should avoid these foods or foods derived from them. This type of diet should accompany the sick person for life and they should be encouraged to eat homemade foods that know the origin and composition. In addition, it is necessary that these people feed on dietary fibers, such as beans, fruits, vegetables, brown rice and quinoa.

8 0
3 years ago
If you double the force on the object what is the result on the acceleration?
Zepler [3.9K]

Answer:

As we increase the force on an object the acceleration increases proportionally. ... Therefore, if you double the force you double the acceleration. If you increase the mass at a given force the rate of acceleration slows. Therefore, mass is inversely proportional to acceleration.

Explanation:

8 0
3 years ago
From what type of organism do scientist think plants envolved?
Oksana_A [137]

Answer:

It was thought that plants evolved from stonewort-like algae. New research shows that the closest relatives to land plants are conjugating green algae

6 0
3 years ago
Read 2 more answers
Other questions:
  • In landlocked lakes, water is discharged primarily through _____. precipitation evaporation groundwater seepage rivers and strea
    11·2 answers
  • As a submarine gets closer to the bottom of the ocean. which of these is it likely to encounter? select the two correct answers.
    14·1 answer
  • What happens when a person with a skin fungus shares a towel with another person
    14·1 answer
  • Which of the following statements about renewable resources is TRUE? A. They are only found in tropical climates. B. They can ne
    9·1 answer
  • A knife is an example of a(n) _______.
    6·1 answer
  • Which of the following statements is true about the nature of light?
    12·2 answers
  • The use of many household chemicals, and even the use of outdoor barbecues can cause toxic air pollution.
    15·1 answer
  • Humans contribute to many changes of areas such as beaches, bays, wetlands, the sea floor, and coral reefs. How does the deliber
    5·2 answers
  • Explain the advantages of using formula milk rather than cow milk using the table​
    9·1 answer
  • Describe two effects that ingesting microbeads has on aquatic organisms.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!