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alekssr [168]
3 years ago
7

Explain how a population of antibiotic-resistant bacteria might develop from non-resistant

Biology
1 answer:
vladimir2022 [97]3 years ago
3 0

Answer:

More exposure causes mutation in bacteria.

Explanation:

More exposure to the antibiotic by non-resistant  bacteria causes change in its structure against the environment and as a result of that change the bacteria get resistance against that antibiotic. No, farmers should not be allowed to put low doses of antibiotics in  animal feed because it has no effect on the antibiotic-resistant bacteria. The farmer should use another antibiotic on the antibiotic-resistant bacteria which they have no resistance.

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What is G-banding? What regions of the chromosome (e.g.base composition, condensed or open, early or late replicating) are stain
Wewaii [24]

Answer:

G-banding or Giemsa banding is a technique used to study the chromosomes by staining then at condensed stage. The visible karyotype can be used by this technique. The genetic diseases can be easily identified by this G banding technique.

The base composition of the genes (nucleotide) are stained by the dye known as Giemsa stain. The nitrogenous base adenine and thymine of the heterochromatic region of chromosome stained darkly in this technique. The darkly stained area is generally gene poor area.

7 0
3 years ago
The human genome contains about 3 billion base pairs. During the first cell division after fertilization of a human embryo, S ph
Nataly [62]

Answer:

5556

Explanation:

If a DNA polymerase synthesizes in average 50 nucleotides/second, that means that in three hours (10800 seconds) it synthesizes about 540000 nucleotides.

However, if the human genome is composed of 3000000000 (3 billion) base pairs (nucleotids), the minimum number of DNA polymerases (working in the same number of origins of replication) to finish the duplication of all the genome in three hours is 5555,5. (3000000000/540000). As we know there is no half polymerase, so we round to 5556.

5556 molecules of DNA polymerases acting on 5556  origins of replication are needed.

7 0
3 years ago
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Part a complete the dna (double-stranded) labeling pattern for chromosome that you would expect to find in metaphase chromosome
Eddi Din [679]
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6 0
3 years ago
• : What does a career in solar energy involve that improves the quality of life for people in the developing world?)
saveliy_v [14]
I think the answer is Global Development Engineering.

People in this career help sustainable development happen through the use of their inventions that are mainly energy efficienct.

They are focused on research, design, and the creation of alternative ways to promote good health and sanitation, housing, and renewable energy that will cater developing or underdeveloped countries.  
GLE is one engineering team that made a solar project in Africa.
8 0
3 years ago
How many possible combinations of both of your parents chromosomes were there to make you?
Monica [59]

Answer:

8,324,608 

Explanation:

i saw that no one commented so i seached it and found the answer: 8,324,608 

5 0
2 years ago
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