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
pshichka [43]
4 years ago
7

In 1953, the scientists James Watson and Francis Crick published their landmark findings on the structure of DNA. Watson and Cri

ck deduced the structure of DNA by unifying evidence that they collected from several scientists who were also seeking to answer this important question. Identify the pieces of evidence describing the features of DNA that Watson and Crick used to determine the structure of DNA. a. A purine base forms covalent bonds with a pyrimidine base located on the opposite DNA helix. b. DNA forms a right-handed double helical structure with two polynucleotide chains coiled around a central axis. c. The two chains are parallel, both running in a 5' to 3' direction. d. A purine base forms hydrogen bonds to pair with a pyrimidine base located on the opposite DNA strand. Specifically, A pairs with T, and C pairs with G. e. The sugar-phosphate backbones of each DNA helix run antiparallel to one another. f. The diameter of the DNA double helix is 2 nanometers, with each purine-pyrimidine base pair spanning an equivalent distance between the two chains.
Biology
1 answer:
erik [133]4 years ago
5 0

Answer:

d. A purine base forms hydrogen bonds to pair with a pyrimidine base located on the opposite DNA strand. Specifically, A pairs with T, and C pairs with G.

Explanation:

You might be interested in
A red blood cell (a Eukaryotic cell) is about
elena55 [62]

Answer:

0 14

Explanation:

3 0
3 years ago
DNA is copied once, mitosis or meiosis?
Norma-Jean [14]

Answer:

interphase before mitosis

Explanation:

5 0
3 years ago
A force on an object pulling it towards the center of the earth is called
anyanavicka [17]
Hello. a force on an object pulling it towards the center of the earth is known as gravitational force. hope you benefited from it. reply.

5 0
4 years ago
Read 2 more answers
An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized an
Anon25 [30]

The option that best illustrates the similarity and difference in the elemental makeup of these molecules is that carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements. That is option B.

Carbohydrates are macromolecule found is food substances that plays a vital role of energy supply to the body.

It is made up of chemical elements such as carbon,hydrogen and oxygen in the ratio of 1:2:1.

Lipid is another macromolecule found in food which is an energy reserve for the body.

Lipids are made up of elements seen in carbohydrates such as carbon, hydrogen and oxygen but contain many more hydrogen atoms than oxygen atoms.

Proteins are another type of macromolecule found in food which helps in body building and repair of worn out tissues.

Proteins are made up of elements seen in carbohydrates and lipids with the addition of nitrogen atom.

Therefore, carbohydrates and lipids both contain carbon, hydrogen, and oxygen atoms, while the proteins contain nitrogen in addition to those three elements.

Learn more about proteins here:

brainly.com/question/10058019

5 0
3 years ago
Which of the following statements is TRUE about photosynthesis
Kitty [74]

Answer:

What are the statements? please mention

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Why do RNA viruses appear to have higher rates of mutation?
    13·2 answers
  • All animals and plants have adaptations to help them survive, but some of these adaptations can be quite bizarre. Find out and e
    7·1 answer
  • Imagine a gene mutation creates a new color of hair . According to Andersen , what will this do ?
    13·2 answers
  • What causes the isopods to move to a specific area?
    7·1 answer
  • Water is less dense in its liquid state? true or false
    7·2 answers
  • What is the significance of the debate over climate change and why it is relevant in today’s world?
    10·2 answers
  • What would provide evidence that three distinctly different vegetables share a recent common ancestor?
    8·1 answer
  • The offspring from asexually reproduced organisms are
    13·1 answer
  • For the growth curve to continue increasing, which of these must occur?
    6·1 answer
  • 2) A person with hardened arteries will
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!