How did Watson and Crick determine base pairing?

Answers

Answer 1

Answer: Their model of the DNA molecule showed that the hydrogen bonds could create a nearly perfect fit between nitrogenous bases along the center of the molecule. But the bonds could only form between adenine and thymine, and between cytosine and guanine.

Answer 2

Answer:

They were the first ones to build a model that showed the hydrogen bonds that could make a almost perfect fit between nitrogenous bases along the center of the molecule. This could only happen if the bonds could form between adenine and thymine, and between cytosine and guanine.

Related Questions

Which sentence uses italics or quotation marks correctly? A. I really like that song called "Do You Believe in Magic?" B. My baby brother already knows songs like "Twinkle, Twinkle Little Star." C. As Mom cooks breakfast, she hums one of her favorite songs, Oh, What a Beautiful Mornin'. D. Dad makes me laugh when he sings the Elvis Presley song "Hound Dog."
Which sentence has no errors in the use of quotation marks or italics? A. I found information about ancient Egypt in the book The History of the Ancient World and in the New York Times. B. I found information about ancient Egypt in the book "The History of the Ancient World" and in the New York Times. C. I found information about ancient Egypt in the book The History of the Ancient World and in the New York Times. D. I found information about ancient Egypt in the book "The History of the Ancient World" and in the "New York Times."
Why does Danilka say that there is no secret in nature that baffles Terenty?
The first aspect of the argument you must evaluate is the truth of the reasons that are being used to support a conclusion. a. True b. False
Although the words “premonition” and “foreboding” have similar meanings, they are different because _____.

What was titubas main motivation in the crucible?

Answers

To save herself from having to be hung and accused as a witch.

You need to write a five-page essay on Leo Tolstoy’s novel The Death of Ivan Ilych. Which of the following is a good topic for your essay?A.) The use of symbolism in literature

B.) The symbolism of death in popular literature

C.) The literary devices that Tolstoy employed in his works

D.) The use of figurative language in The Death of Ivan Ilych

Answers

a. The symbolism in the literature
Since Tolstoy's novel uses a great amount of symbolism

IO would say c or d hope this helps :)

Please help!! Parta. Two similar prisms have heights of 4cm and 10cm. What is the ratio of their surface areas?
A. 2:5
B. 4:25
C. 8:125
D. 16:625

Answers

The correct answer for the question that is being presented above is this one: "B. 4:25." Two similar prisms have heights of 4cm and 10cm. The ratio of their surface areas is that 4:25. The

I assume that the prism is a cube.
SA = 6a^2
SA = 6(4^2)
SA = 6*16
SA = 96

SA = 6a^2
SA = 6(10^2)
SA = 6*100
SA = 600

96:600
16:100
4:25

Answer:

B. 4:25

C. 8:125

Explanation:

The phase of a debate in which positions are presented is the ___________________.a. introduction
c. rebuttal
b. body
d. conclusion

Answers

This is the introduction.

Think of it as something of an essay. The introduction gives the essay's positions and opinions.

What form of poetry is When I Have Fears?A. Pindaric ode
B. Horatian ode
C. irregular ode
D. sonnet

Answers

Provided that the poem 'When I have Fears' have fourteen lines, and follows the Iambic Pentameter, it is a SONNET.

Moreover, its rhyme scheme of a-b-a-b-c-d-c-d...etc. and that the poem ends with a rhyming couplet determines that it is a Shakespearean sonnet.

The answer is D. John Kear's "When I Have Fears" is a Shakespearean sonnet.

What is the product of 8(-1)?

Answers

multiply by -1 is just taking the genitive of a number, so the product is -8

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What might be the significance of Caedmon being a simple cowherd?

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Rivers have played an important role in human history. Since ancient times, towns, cities, and entire civilizations have thrived around rivers, which provide people with many of life's necessities. One such river, the River Thames, has been instrumental in the founding and development of London. What is the MOST LIKELY reason many civilizations developed around rivers? * 100 points

Which phrase best defines mood in literature? the location of a story the atmosphere of a story the attitude of the writer the traits of the characters