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never [62]
2 years ago
6

Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA

Biology
2 answers:
Phantasy [73]2 years ago
6 0

Answer:

D

Explanation:

anastassius [24]2 years ago
3 0

Answer:d

Explanation:

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Does our galaxy have a Moon?
Solnce55 [7]

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yes, our outer space has a moon

5 0
2 years ago
Lead emissions since the early 1980s have
frez [133]
Lead emission since early 1980s have DECREASE DUE TO LEAD FREE GASOLINE. 
Lead is a natural occurring element that is found in small quantity in rocks and soils. Lead emission is an important environmental health issue because a very small quantity of lead can cause adverse effects on the nervous system of unborn babies and young children. Because of this, the government took all necessary measures to ensure that its emission was drastically reduced.
4 0
3 years ago
How does recycling runoff reduce agricultural pollution?
vovangra [49]

Answer

D. It keeps chemicals from entering the watershed

Explanation

Agricultural run off can be described as the disposal of artificial fertilizers , pesticides, herbicides, sewages etc into which drained off into oceans , lakes and ponds with water .

Agricultural run off is recycled , then water will be less polluted , the water therefore be not harmful for usage by the plants/crops & it will make the drained water less contaminated for the Aquatic living in the ocean , rivers , lakes or ponds

5 0
3 years ago
The Hershey and Chase experiments involved the preparation of two different types of radioactively labeled phage. Which of the f
Vlad1618 [11]

Answer:

B. It was necessary that each of the two phage components, DNA and protein, be identifiable upon recovery at the end of the experiment.

Explanation:

Hershey and Martha Chase used radiolabeled the DNA of some of the bacteriophage cells with phosphorus (32P). They radiolabeled the sulfur (35S) of the coat protein in the second batch of the phage cells. They infected some of the bacterial cells with phage having radiolabeled DNA while the other <em>E. coli</em> cells were infected with the phage carrying radiolabeled coat protein. This allowed the clear identification of the radiolabelled molecule (DNA or protein) present in the host cell.

They observed that the <em>E. coli </em>cells infected with phage having radiolabeled DNA exhibited the radioactivity while the other batch of the host cell did not show it.  

6 0
3 years ago
Within what brain region would damage be most likely to disrupt your ability to skip rope? your ability to sense tastes or sound
Vlada [557]

There are so many examples for that in different areas, like organic germanium compounds experiment carried out in our lab recently.

Here's one link: http://www.alfa-chemistry.com/products/organic-germanium-24.htm


4 0
3 years ago
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