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
Sav [38]
2 years ago
12

In 1952, Rosalind Franklin took an X-ray photograph that revealed the structure of DNA. James Watson and Francis Crick followed

up on this discovery in 1953. They discovered that the molecule has a specific shape that can best be described as —
A. a single strand containing 4 different bases that vary depending on the type of DNA

B. ladder-shaped, containing 5 nitrogenous bases that bond to one another

C. triple-stranded, with bonds between each strand holding the three strands together

D. double-stranded and twisted, with bases bonded to other bases which hold the strands together
Biology
1 answer:
kari74 [83]2 years ago
4 0

Answer:D

Explanation:It can only be B or D but it has 4 not 5 so it has to be D!

You might be interested in
Lipids are important to living things for all of the following reasons, EXCEPT that they are
maxonik [38]
<span>hello there hester , i would say needed to form cell membranes</span>
5 0
3 years ago
Study the image of Earth’s interior.
MrRa [10]
Well there are many but the surface of the earth is the material violin one outer core (if that makes sense
5 0
3 years ago
Read 2 more answers
what are some advantages and disadvantages of using permanent slides as opposed to temporary slides to view tiny aquatic animals
nikitadnepr [17]

Answer:

Permanent slides ensures preservation of the body parts of the tiny aquatic animals and also also aids good visualization.Most of the exoskeleton of   these tiny   animals are lost during temporary slides preparation, thus loss of visualization.

Because the animals are transfixed to a point, their body parts can not be moved.

It also saves time, energy and resources spent during observation.

However,because of dehydration during preparation  their natural color may be lost which may affect observation of natural features

Explanation:

3 0
3 years ago
Which is an appendicular bone?<br><br> A. Vertebra <br> B. Radios <br> C. Cranium <br> D. Rib
djverab [1.8K]

B radius bone. I hope this helps

5 0
2 years ago
Elevated carbon dioxide levels have been shown to contribute to the greenhouse effect, resulting in an increase in mean global t
andrew-mc [135]

Answer:

C

Explanation:

Ice-covered surfaces are highly reflective of the sun's rays therefore prevent those areas from warming as much as the areas where the ice is replaced with darker, less reflective surfaces which absorb heat and thus contribute more to global warming. Albedo is the percentage of radiation reflected by the earth's surface. Clear surfaces have greater albedo values than dark surfaces.

7 0
3 years ago
Other questions:
  • How can mutations on a single gene affect protein production?
    9·1 answer
  • One reproductive adaptation that helped oviparous reptiles and birds survive the harsher conditions on land was the ____________
    9·2 answers
  • Sort the statements based on whether they describe DNA replication in eukaryotes or prokaryotes. Replication takes place in the
    7·2 answers
  • In Incomplete Dominance, the dominant allele is not expressed when the recessive allele is around. There are three phenotypes po
    11·1 answer
  • The species of plasmodium that cause the disease malaria are found in
    10·2 answers
  • 2. Explain how plants can move water upward. Include the terms cohesion, adhesion, and capillary
    7·2 answers
  • In what cases may the exclusion of insects be seen?
    13·1 answer
  • Many species get their food by eating other organisms this is called
    11·2 answers
  • What could cause a population to reach it's carrying capacity?
    7·2 answers
  • ? Help please would appreciate it
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!