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Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DN

Troyanec [42]

Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

In any one species, the amount of adenine closely approximates that of thymine.
In any one species, the amount of guanine closely approximates that of cytosine.
The amounts of A, T, G, and C in DNA varies from species to species.

(options A, B and D)

Explanation:

Organizing the data has to:

Source of DNA A T G C

Streptococcus 29.8 31.6 20.5 18.0

Yeast 31.3 32.9 18.7 17.1

Herring 27.8 27.5 22.2 22.6

Human 30.9 29.4 19.9 19.8

E. Coli 24.7 23.6 26.0 25.7

DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

Since Adenine and Thymine -as well as Cytosine and Guanina- are complementary, the percentage of them will be very similar in each DNA molecule.

The genetic information -which determines the physical and functional characteristics of each organism- is encoded in the DNA and is different for each species, so the percentages of nitrogenous bases vary from species to species.

5 0

3 years ago

What is the purpose of sociology

irinina [24]

Answer:

Sociology's purpose is understanding how human action and consciousness both shape and are shaped by surrounding cultural and social structures.

:)

7 0

3 years ago

Modern corals are restricted to growing in warm, clear, well-lit, shallow water. Over the last two million years, coral reefs ha

vova2212 [387]

The answer is Climate change. It will take decades for the coral reef to recover from the catastrophic climatic changes including El Nino in 1997-98. Climate Change is the main and undeniable threats to the loss of the corals. It has negative effects on coral populations in some ways. This includes the Color Bleaching, Coral Disease, and Ocean Acidification.

5 0

3 years ago

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How do enzymes affect chemical reactions and activation energy?

lara [203]

Enzymes (Catalysts) lower the required activation energy, allowing the reaction to happen more quickly.

3 0

3 years ago

How did robert hooke contribute to the cell theory?

Blizzard [7]

Answer:

Read explanation.

Explanation:

Robert Hooke defined what a cell, in other words, he gave that name to what we now know as a "cell".

How he came up with that name is simple, and doesn't involve science or biology itself. All happened when he was looking to a sample of oak bark, and saw this tiny enclosed structures, that reminded him of a cell.

Hope it helped,

BiologiaMagister

5 0

3 years ago