What are the 4 bases that make up the rungs of the DNA ladder

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Answer 1

Answer: The four bases that make up the rungs of the DNA ladder are adenine, thymine, cytosine and guanine. They are often represented as A, T, C and G, respectively. When two strands of DNA form a double-strand helix, the bases pair up in the middle of the molecule. Hope this answers the question.

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In this redox reaction, identify the reducing agent.2MgO → 2Mg + O2 H2O Mg MgO O
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Which type of biome is characterized by the following descriptions? moderate temperatures with seasonal changes very high amounts of rainfall thick canopy of trees which filters out a majority of the suns rays, leaving the forest floor mostly shaded. broadleaf or coniferous trees

Answers

The answer is Tropical Rainforest Biome

The tropical rainforest has a moderate temperature with seasonal changes. The amount of rainfall in a tropical rainforest is high. It has a thick canopy of trees which filters out a majority of the sunlight which is why the forest floor is almost shaded.

It's temperate rainforests...................................................

Which of the following is considered a noncovalent bond?A. Electrostatic interactions.
B. Hydrogen bonds.
C. Van der Waals interactions.
D. All of the above.

Answers

Hydrogen bonds I’m pretty sure

How do beaches form? (Can you please check my answer, I chose B!) A. Beaches form where there is enough surface area to erode.

B. Beaches form when the amount of sediment deposited equals the amount eroded.

C. Beaches form when more erodes than is deposited.

D. Beaches form when more sediment is deposited than erodes.

Answers

D. Beaches form when more sediment is deposited than erodes.

i think you are right. B is the right answer.

A geologist creates a model of a mountain range in order to study erosion patterns. The elevation of the tallest mountain in the actual mountain range is 10,000 feet. The height of the tallest mountain in the model is 1 foot. The elevation of the smallest mountain in the actual mountain range is 5,000 feet. What is the height of the smallest mountain in the model?0.5 feet
5 feet
0.2 feet
2.5 feet

Answers

Answer:

Option (A)

Explanation:

Here, the given question is based on the scale-model.

a height of 10,000 feet on the actual mountain range is taken equivalent to 1 foot in the model .

so we can write it as,

10,000 feet=1 feet

1 feet=(1÷ 10,000) feet

Therefore,

5000 feet={(1÷ 10,000)×5,000} feet

5000 feet=0.5 feet

So, we can determine that a height 5000 feet on the actual mountain range is equivalent to a height of 0.5 feet on the model.

Hence, the smallest mountain on the model is 0.5 feet.

0.5 feet, because 10,000/2 = 5,000 which is the smallest actual mountain in the range. therefore, the model is 1/2 = 0.5

A scientist tries to mate the two similar-looking fruit flies Drosophila melanogaster and Drosophila simulans. But he finds that they are unable to produce viable offspring. What kind of evolutionary barrier could this be?A.Chromosomal
B.Postzygotic
C.Physical

Answers

I would say that the kind of evolutionary barrier that this could be is B) postzygotic.
They can produce an offspring, but it can't be viable, meaning that it doesn't survive.

The kind of evolutionary barrier would be : B. Postzygotic

During postzygotic barrier, they do manage to produce offsprings. But that offspring do not has a fertile characteristic and tend not be able to survive and produce the next generation

hope this helps

What literary period is the Beat Generation aligned with?

Answers

The literary period that the Beat Generation is aligned with is postmodernism. Practically, postmodernism exists even today, whereas the Beat Generation existed during the 50s and 60s.

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