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
Katena32 [7]
3 years ago
10

What was known before Franklin and Wilkins conducted their studies of DNA? Check all that apply. DNA is found in the nucleus of

a cell. The human genetic code is made of 50,000 genes. Organisms store and transmit genetic information. DNA has a double-helix structure. Cells contain protein molecules.
Biology
2 answers:
kvasek [131]3 years ago
8 0

Answer:

The correct answer will be-

   1. DNA is found in the nucleus of a cell

    2. Organisms store and transmit genetic information

    3. Cells contain protein molecules.

Explanation:

The study of DNA started much before the discoveries of Rosalind Franklin and Maurice Wilkins.

Nucleus of cell was discovered by Robert Brown in 1831 but the material present inside the nucleus called "nuclein" (DNA) came from the studies of Johann Friedrich Miescher in 1869.

Proteins as a constituent of cell were discovered by the experimental analysis of Gerhardus Johannes Mulder in 1837.

DNA as a genetic material came from the experimental studies of Frederick Griffith in 1928, Oswald Avery, Maclyn McCarty, and Colin MacLeod in 1944, and Hershey and Chase in 1952.

Franklin and Maurice Wilkins are known for their work on the the structure of DNA as they were able to produce high-resolution X-ray photographs of DNA fibres called Photo 51 in 1952 using X-ray diffraction technique. By 1953 Franklin concluded concluded that DNA shows helical structure with phosphates on outer side.

Thus, 1. DNA is found in the nucleus of a cell

         2. Organisms store and transmit genetic information

         3. Cells contain protein molecules.

             are the correct options.

lutik1710 [3]3 years ago
8 0

Answer: A,C,E this are the answer

Explanation:

You might be interested in
How does phagocytosis occur in the lungs?
diamong [38]

Answer:

Phagocytic defense in the normal lung is shared principally by two kinds of cells - alveolar macrophages that reside on the air surface and roam the alveoli and PMNs that circulate in the intravascular space or are stored transiently in areas adjacent to the capillary-alveolar interface (marginated in capillaries)

Explanation:

mark brainliest pls

3 0
3 years ago
1.6 (IB 2017/MAY – SL P1/5C) When during the cell cycle does DNA replication take place?
Evgesh-ka [11]

Answer:

Mitosis!!!!!!!!!!!!!!

7 0
3 years ago
Diffusion in membrane cell
Nimfa-mama [501]
Diffusion is one form of passive transport that doesn't require the expenditure of cellular energy. A molecule can diffuse passively through the cell membrane if it's lipid-soluble, uncharged, and very small, or if a carrier molecule can assist it. ... The assisted process is known as facilitated diffusion.

Got this off google but still hope it helps :)
5 0
2 years ago
Read 2 more answers
bedbugs are parasites? Explain your reasoning using what you’ve learned about parasitic relationships.
velikii [3]

Explanation:

Bedbugs are parasites that rely on blood to survive. They can feed on the blood of any mammal, although they appear to prefer the blood of humans. They are attracted to the warmth surrounding mammalian bodies and the carbon dioxide present in breath expiration. It is usually these factors that guide bedbugs to locate a suitable host for feeding. DOES THIS HELP?

5 0
3 years ago
Read 2 more answers
The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these
Oksana_A [137]

Answer:

Im waiting on an answer aswell.

Explanation:

3 0
3 years ago
Other questions:
  • Spreading black necrosis, swelling, pain and froth or bubbles are characteristic of
    7·1 answer
  • List 3 things that the satellites orbiting earth are used for
    10·1 answer
  • What might a unhealthy pyramid look like
    9·2 answers
  • Is glucose more or less complex than the rest of the biomolecules ?
    10·1 answer
  • The number of individuals per unit of area is:
    10·1 answer
  • three species of northern American warblers are found to feed in different parts of the same spruce tree. This particular behavi
    12·2 answers
  • how the skin cells, neurons, muscle cells, and blood cells you have observed relate to the functions of skin, nerve, muscle, and
    13·1 answer
  • Many species of bacteria live in your mouth and throat. These bacteria come from several different groups within domain Bacteria
    8·1 answer
  • Plz plz plz help Scientists rejected Wegener's theory because he could not _________________________.
    13·1 answer
  • How do mutations introduce new traits?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!