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
Svetach [21]
3 years ago
11

How did James Watson and Francis Crick explain the DNA molecule’s consistent width?

Biology
1 answer:
Anna11 [10]3 years ago
5 0
<span>Two of the nitrogenous bases present in DNA (Guanine and Adenine) contain two rings and thus are much larger than the other two (Cytosine and Thymine), which have only one. Nitrogenous bases with two rings (such as G and A) are known as PURINES, whereas nitrogenous bases with a single ring (such as C and T) are known as PYRIMIDINES. A stable DNA structure is formed ONLY when the two strands are a constant distance apart which ONLY happens when a PURINE (G or A) on one strand is paired with a PYRIMIDINE (C or T) on the other strand. The strands would have to move much further apart to permit a purine to pair with another purine and would have to move much closer together to permit a pyrimidine to pair with a pyrimidine. (Source: https://www.amherst.edu/system/files/media/1536/ModGen_1C_TP.pdf )</span>
You might be interested in
You use _____ reasoning to propose a process that explains observed facts. You use _____ reasoning to propose what facts you wou
marissa [1.9K]

You use inductive reasoning to propose a process that explains observed facts. You use deductive reasoning to propose what facts you would observe if a known process took place.

Deductive reasoning, or deduction is a type of reasoning used in scientific method. It starts out with a general statement (called hypothesis is scientific method), and examines the possibilities to reach a logical conclusion about it. If the theory is correct, what observations should be.  Inductive reasoning is the opposite. It is a type of reasoning when you start from specific observations to the general statement.


8 0
4 years ago
What is a tendon?
natka813 [3]

The correct answer is- A tendon is a connective tissue that links a bone to a muscle.

Tendons are a type of a connective tissue. They are fibrous tissue with great strength like rope and made of collagen fibres, but they have less flexibility. The main function of tendons are to connect bones to muscles for the proper function of the body.  

6 0
4 years ago
Read 2 more answers
the interaction generated by human intervention to protect the gray wolf population in the northwestern united states can be def
lina2011 [118]
Commensalism is defined as a relationship between two species where one has certain benefits from the relation and the other is unaffected. So, in this case, it is hard to determine what kind of relationship the gray wolf  and human populations have because when people intervene to help protect a species they are officially unaffected, they do not lose or gain anything, but the gray wolf is one of the key species in their ecosystem, so protecting them is beneficial for the ecosystem, therefore can have numerous positive effects on human-environment too.
8 0
3 years ago
You recently adopted a cat/puppy from a local shelter. What are some examples of at least THREE phenotypes it might have inherit
Vitek1552 [10]
Genotype - refers to the genetic characteristics

Genotype examples - intolerance, allergies, ex…

Phenotype - refers to the physical characteristics or they also be measured in a laboratory

Phenotype examples - levels of blood cells, levels of hormones, any physical trait like height, hair color, ex…

Hope this helps some
8 0
3 years ago
Pls help its time
stepan [7]
B ) active transport!!
6 0
3 years ago
Other questions:
  • Based on what you know of the animal phylogeny and evolution from introductory biology, do they share these features because the
    8·1 answer
  • An increase in the nfp would result in a(n) _______________ in the gfr.
    11·2 answers
  • How does carbon’s high valence relate to its ability to form these large and complex biomolecules?
    10·1 answer
  • The material labeled k contains elements that do not conduct heat electricity well. The material that make up k are most likely
    15·1 answer
  • Can someone please tell me some basic facts about the golgi body? I've done a ton of research and still can't really understand
    15·1 answer
  • What is the term that describes how a<br>plant responds to gravity?​
    9·1 answer
  • Which radioactive isotope would you use to date a 4-billion-year-old piece of granite?
    12·1 answer
  • Compare and contrast the events of light reaction and dark reaction in the photosynthesis process
    15·1 answer
  • Which of the following is a type of membrane protein that binds chemical messengers such as adrenaline at the plasma membrane?
    9·1 answer
  • Which example demonstrates metabolism? (brainly wont let me see other answers ;( )
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!