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Snezhnost [94]
3 years ago
6

Scientists have recently modified the bacteria that cause tooth decay by inserting a fragment of DNA into the bacteria's DNA tha

t prevents it from producing lactic acid. What is the new DNA called?.
Biology
2 answers:
algol [13]3 years ago
8 0

Answer:

recombiant dna

Explanation:

none

Lelu [443]3 years ago
4 0
The new process is called genetic engineering. 
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You are studying with a classmate, who explains that increasing the amount of nutrients in a lake helps submerged, rooted aquati
Nataly_w [17]

Answer:

E-You disagree because the resulting increase in phytoplankton at the surface would inhibit sunlight from penetrating into the water, thus inhibiting photosynthesis in the submerged plants.

Explanation:

Eutrophication is the process wherein nutrients specifically phosphorus and nitrogen are present in excess in a water body such as a lake. The increased concentration of nutrients promoter the growth of cyanobacteria and algae such as phytoplankton.

The increased population of phytoplankton in surface water reduces the oxygen availability and clarity of water for the organisms present in deeper layers.  Also, reduced clarity of water limits the amount of solar radiations penetrating the surface water to reach the deeper layers.

Increased nutrient levels of the lake would rather inhibit the growth of submerged plants due to reduced availability of sunlight as caused by presence of phytoplankton in surface water.  

5 0
3 years ago
Describe two potential biological risks of large scale cultivation and use of such genetically modified plants
expeople1 [14]
Risk of large scale production:
1. With an increase in production, there can become managerial problems. Workers can become lax, making of decisions become difficult and communication between workers become hard.
2. A large scale operation, needs technical tools like machines. Finance to buy machines can become a problem and hamper growth.

Risk of Genetically modified plants
1. They can become contaminants. The cross pollinated plants and seeds can travel, and contaminate the gene pool. Thereby, threatening future generations of plants.
2. They can produce side effects. Engineered plants, can lead to development of new toxins, carcinogens and deficiencies of nutrition.
6 0
3 years ago
The practice of cells turning on the production of some enzymes and turning off others in response to a changing environment is
Andru [333]

Answer:

Adaption

Explanation:

In the case when the practice of cells turn on some enzymes production and turn off the others so that the response to the environment i.e. changed is known as an adaption.

In this,  the organisms are adjusted according to the environment

So as per the given statement, the adaption is the answer and the same is to be considered

4 0
2 years ago
What is food energy in the form of glucose?
tiny-mole [99]
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</span>
8 0
3 years ago
You are observing diseased cells in a medical laboratory. Upon close inspection, you notice that the cells contain many food vac
ankoles [38]
The organelle that could b malfunctioning is the mitochondria, which packages proteins and without protein for cells, the outcome is cell lysis, or destruction.
8 0
3 years ago
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