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lys-0071 [83]
3 years ago
7

How did Watson and Crick determine base pairing?

Biology
1 answer:
Natali [406]3 years ago
3 0
<span>Watson and Crick determined the base pairing by using the new information to construct a new double-stranded helix model with the nitrogen bases paired A to T and C to G in the center. This base pairing immediately suggested to Crick that one side of the molecule could serve as a template to exactly replicate DNA sequences to pass on genetic information during cell reproduction. This second, successful model was unveiled in February 1951.</span>
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grin007 [14]

Answer:

eukaryotic and prokaryotic cells.

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3 years ago
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What characteristic of water causes water to stick to the side of a test tube?
bazaltina [42]

Answer:

The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity (Claim).

Explanation:

Water (H₂O) is a polar molecule with the ability to generate van der Waals forces, which is explained by the 4 hydrogen bonds it forms to bind to other substances. The consequence of the forces of the molecular bonds are four properties of H₂O, including surface tension, cohesion, adhesion and capillarity.

- <u>Claim</u>: The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity.

- <u>Evidence</u>: Cohesion and adhesion of water are properties that come from the forces of the molecular bonds of water, and whose effect is the ability of water to wet surfaces and adhere to a tube that contains it, the latter due to capillarity. Capillarity also allows water to rise through the roots and stems of plants, through their thin vascular ducts.

- <u>Reasoning</u>: <u>cohesion</u> in water depends on the force of attraction between H₂O molecules, <u>adhesion</u> is the capacity of H₂O molecules to join other different molecules and —together with <u>surface tension</u>— make H₂O molecules close to the walls of a glass tube adhere to it, which represents capillarity.

The effect of capillarity is more evident when the test tube is of a smaller diameter, although capillarity and adhesion to its walls always exist, and to a greater degree than any other substance.

8 0
2 years ago
Movement of vesicles within the cell depends on what cellular structures
Hatshy [7]
<span>It depends on motor proteins and micro-tubules. Motor proteins are proteins that transform chemical energy into mechanical energy which helps cell movement and they also move along a surface. Micro-tubules are also proteins and they are structural components of the cytoskeleton. They are used as structures for movement with the vesicles .</span>
8 0
3 years ago
If the pride is taken over by new individuals, what happens to the females? males? cubs?.
Nookie1986 [14]

The cubs are a significant barrier to reproduction when a new male coalition first takes control of a pride. Mothers of surviving cubs won't mate again until their young are at least 18 months old, but if their cubs are lost, they will mate right away.

  • Following that, males leave on their own or are driven out by other men who take control of their pride. It is common for a new male to kill all the cubs when he joins the pride in order to pass his genes on to all future cubs. The major function of males in the pride is defending the pride's territory.
  • Female lionesses will devour the cubs of other pride, but not the cubs of their own pride. The "egalitarianism" of female lions stands in stark contrast to the autocratic behavior of wolves, wild dogs, and several other species, where dominant females prevent subordinates from reproducing.
  • When a female lion gives birth, she leaves the pride and doesn't come back until the cubs are several weeks old. After that, the adult females band together to take care of and protect the young.

Learn more about pride here:

brainly.com/question/17454996

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6 0
1 year ago
Organic compounds all contain the element carbon. Which organic compound used for stored chemical energy contains carbon, hydrog
aleksklad [387]

Answer: Lipids

Explanation:

7 0
3 years ago
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