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ohaa [14]
3 years ago
14

Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. What is one benefit of thi

s procedure? A) Patients do not receive harmful or ineffective medication. B) The cultured cells are not in their normal environment. C) Doctors know how to treat all types of cancer. D) One tissue culture can be used for all cancer patients.
Biology
2 answers:
sp2606 [1]3 years ago
8 0

Answer:

A is the right answer

Explanation:

Eduardwww [97]3 years ago
7 0

The answer is A. When a potent drug is discovered, it has to undergo animal and human trials to test it ADMET (Absorption, Distribution Metabolism, Excretion, and Toxicity) properties. Using tissue cultures to test drugs, such as cancer drugs, prevents the incidence of subjecting humans to the unknown adverse effects of the drugs before the drugs are determined to be safe for use.

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What do landforms include
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Answer:

A landform is a feature on the Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills.

Explanation:

4 0
3 years ago
List the biotic components of the carbon cycle
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Organisms eat plants, which is comprised of carbohydrates; those carbohydrates come from Carbon<span> dioxide in the atmosphere. Thus, an abiotic factor (</span>carbon<span>dioxide) helps create a </span>biotic<span> factor (the plants made out of carbohydrates).</span>
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In the rock cycle, weathering and erosion begin the process of the formation of
Artyom0805 [142]
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6 0
3 years ago
A damages axon in the PNS may be able to regenerate only if the cell body is intact. Why do you think that the cell body must be
Sonbull [250]

Answer:

Explanation:

The central nervous system (CNS) does not have capacity to repair itself but, the PNS or the peripheral nervous system can repair and regenerate itself. The PNS can regenerate its damaged axon only when its cell body or cyton and its neurilemma are intact. The proximal end of the cyton has growth cones. The axon grows from the cones.    

6 0
4 years ago
In a sample of 2,400 people, 1,482 were found to have the dominant (taster) phenotype. Assuming that the population is in Hardy-
Alex_Xolod [135]

Answer:

1128.

Explanation:

The dominant taster phenotype is 1482.

The recessive taster phenotype = 2400 – 1482 = 918 .

Recessive phenotypes = 2400 – 1482 = 918

The recessive phenotype frequency = q² = 918 / 2400 = 0.38.

the recessive allele frequency q = √0.38 = 0.62.

The dominant allele frequency, p = 1-q = 1- 0.62 = 0.38

The heterozygous frequency =  2pq = 2 ×0.38 × 0.62 = 0.47 .

The heterozygous individual in the population = 0.47 × 2400 = 1128.

Thus, the answer is 1128.

5 0
3 years ago
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