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Andru [333]
2 years ago
13

A scientist goes on an expedition to Greenland and finds an unknown organism. She then analyzes the DNA and confirms that the st

rand she has contains 1000 total nitrogenous bases. She continues to analyze it further and realizes the strand has 200 adenines. She needs to determine how many cytosines exist in that sample.
Biology
1 answer:
mixer [17]2 years ago
3 0

Answer:

800

Explanation:

1000-200

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The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healt
AleksAgata [21]
<h2>Koch's Postulates.</h2>

Explanation:

The next step should be isolate the microorganism from the mice and check if it is identical to the original microbe.

According to Koch's postulates, a microbe can be considered as a causative agent of a disease only after all the following are established:

  • The microorganism should be present in all the organism suffering from the disease.
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4 0
3 years ago
Read 2 more answers
Which Punnet square represents a cross between two parents that are heterozygous for purple flowers
navik [9.2K]

Answer:

Punnett square is a square diagram which is used to predict the genotype of the offspring produced by particular cross.

Let P and p be the alleles of the gene responsible for the flower colors in a plant.

The genotype of both the parents is given as heterozygous that is, Pp.

Two types of gametes would be formed P and p.

The cross is shown in the image below.

The cross would be result in offspring with three types of genotypes PP, Pp and pp in 1:2:1.


8 0
3 years ago
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What can the location of a fossil in a rock layer tell scientists about the organism?
loris [4]

Answer:

I think that answer is A

Explanation:

how long ago did the organism lived

5 0
3 years ago
A piece of metal will feel colder than a piece of wood at the same temperature.why?
elena-14-01-66 [18.8K]

Answer:

Even though they are the same temperature, the metal will feel colder than the wood because of the thermal conductivity of the metal, compared to the wood. Metal is a good conductor of heat, hence it sends away the heat. On the other hand, wood is a poor conductor of heat, hence releases the heat too slowly.

7 0
2 years ago
Explain how smoking and drinking alcohol by males can affect the development of an embryo ? Please answer !!
meriva

Smoking and drinking can cause major birth defects. It can also cause the baby to be very sick when it is born, and have a near death experience.

depending on the amount of intake, the baby could also be born addicted to either one. It is very dangerous to drink or smoke during the development of a child.

Hope this is helpful!:))))

8 0
3 years ago
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