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1 answer:

3 0

This is a question that you would have to answer

for example: i found a small and colorless bear looking animal(sight). When i touched it was fuzzy and soft(touch). It smelled like dirt and lavender(smell). The creature was sleeping and it was breathing slowly(hearing). I took one of its hair’s and it was like human hair(taste)

BUT REMEMBER since it’s a species it could be an animal or human or a plant.

hopefully I could help!!

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Meselson and Stahl cultured E. coli for several generations in a medium with a heavy isotope of nitrogen, 15N. They transferred

Sidana [21]

Answer:

DNA replication follows semi conservative mode of replication

Explanation:

The results of Meselson and Stahl's experiments can be explained by semi conservative mode of DNA replication. According to it, the two DNA strands separate and both are used for synthesis of new DNA strands such that the new DNA molecule has one parental and one new strand.

In the experiment, originally the medium was 15N so all the DNA molecules had 15N. Later the medium was changed to 14N. In first round of replication in new medium, the two 15N strands in a DNA molecule separated and formed new strands using 14N. So all the DNA molecules had one 15N and one 14N strand.

In the second round of replication, the 15N-14N hybrid DNA molecule separated again. Now, 15N gave rise to 14N strand and 14N strand also gave rise to 14N strand such that half of the DNA molecules were 15N-14N hybrids and half were 14N-14N. Hence, researchers concluded that DNA replicated according to semi conservative mode of replication.

8 0

3 years ago

Which of the following is an example of genetic discrimination?

ryzh [129]

Where’s the examples..

4 0

3 years ago

Suggest why redox indicators highlight aerobic respiration.

spayn [35]

Answer:

Cellular respiration involves many reactions in which electrons are passed from one molecule to another. Reactions involving electron transfers are known as oxidation-reduction reactions (or redox reactions).

6 0

3 years ago

Scientists now know how much carbon dioxide was present in the atmosphere as far back as 800,000 years ago. How did they obtain

sertanlavr [38]

Answer:

Ice core records.

Explanation:

The origin of man took place about 200,000 years ago and looking at the records that are stored in the ice cores before the existence of man which were found by the deep drilling of the antarctic and Greenland shows that how the temperatures have changed and as the example of the carbon in the air.

As in the 800,000 years go the Carbon dioxide levels were on average of 170 to 280 ppm and now they have crossed the 400 ppm mark also at that time the sea levels were high as 80 feet and now are more than 100 feet.

3 0

3 years ago

Read 2 more answers

Fill in the blank with the appropriate term.

vitfil [10]

Do you have a word bank? We can’t go off of your notes without the words

5 0

3 years ago