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vagabundo [1.1K]
3 years ago
7

Explain how the double helix structure of DNA aids in the function of replication.

Biology
1 answer:
fenix001 [56]3 years ago
3 0

Answer:

DNA is made up of a sugar phosphate backbone .

it has4 bases namely adenine ,thymine ,guanine and cytosine shortened to A T G C

adenine and thymine are connected by 2 hydrogen bonds and guanine and cytosine are connected by 3 hydrogen bonds

the two strands are anti parallel in nature ie, if one strand is from 3 to 5 the strand is from 5 to 3.. there are three types of DNA depending on the environment... they are adna bdna and zdna

Explanation:

hope it helps....

good luck

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Innate immunity________.
labwork [276]

Answer:

The answer is A.

Explanation:

Since only 1 of the options is wrong, i assume you are looking for that one.

Two types of immunity systems, innate immunity and adaptive immunity. Adaptive immunity is formed when it is exposed to a harmful substance, vaccines for example create adaptive immunity.

Innate immunity is present at birth which consists our skin protects us physically, chemical substances in our blood that protect us from bacteria and infections and also our blood cells such as T cells.

Since innate immunity forms one of the first lines of defense in our immune system and is the first to respond to a threat in a few hours down to as little as minutes, it is not slower than adaptive immunity in its response to infections and pathogens.

I hope this answer helps.

4 0
3 years ago
Write a journal about Jamestown by describing the dangers, the mistakes they did and lastly the hardships? If u do this I will g
Vera_Pavlovna [14]

Answer:

2c. Jamestown Settlement and the "Starving Time"

Explanation:

The first joint-stock company to launch a lasting venture to the New World was the VIRGINIA COMPANY OF LONDON. The investors had one goal in mind: gold. They hoped to repeat the success of Spaniards who found gold in South America.

In 1607, 144 English men and boys established the JAMESTOWN colony, named after King James I.

The colonists were told that if they did not generate any wealth, financial support for their efforts would end. Many of the men spent their days vainly searching for gold.

As a consequence, the colonists spent little time farming. Food supplies dwindled. MALARIA and the harsh winter besieged the colonists, as well. After the first year, only 38 of the original 144 had survived.

PLZ MARK BRAINLIEST

5 0
3 years ago
In flowering plants, plasmodesmata are narrow channels through cell walls that connect the cytoplasms of adjacent cells. AN expl
tatiyna

The plant cells communicate across cell walls through Plasmodesmata.

how do plant cells communicate across cell walls?

  • Between tiny channels woven through the walls of neighboring plant cells, plant cells can communicate with one another through channels referred to as plasmodesmata.
  • These channels enable chemicals to move freely between cells, allowing plants to grow regularly and form tissues and organs.
  • However, plasmodesmata also act as entryways that viruses can employ to infect an increasing number of cells.
  • Given these advantages and disadvantages, plants must balance the permeability of their plasmodesmata in order to move materials from one cell to another while preventing the spread of infection.

Learn more about the Plasmodesmata with the help of the following link:

brainly.com/question/6220658

#SPJ4

6 0
2 years ago
Which two of the following statements are MAIN
vladimir2022 [97]

Answer:

1

Explanation:

3 0
3 years ago
What does photosynthesis produce? What are these products used for?
Doss [256]

Answer:

photosynthesis produces glucose which is stored as starch in the plant.

Explanation:

6H₂O + 6CO₂ -----> C₆H₁₂O₆ + 6O₂(as a waste product for plants)

Photosynthesis reduces carbon dioxide in the atmosphere which reduces the green house gasses in the atmosphere which reduces the green house effect.

7 0
3 years ago
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