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ss7ja [257]
3 years ago
6

Which of the following is true about Earth's freshwater, air, soil and trees? A. Although these resources are renewable, they pr

esent very few benefits for humans. B. Although these resources are renewable, their present benefits can be reduced if used carelessly. C. Although these resources are nonrenewable, humans don't have to worry about conserving them. D. These resources are nonrenewable, so humans must stop using them if they are to survive.
Biology
1 answer:
Eduardwww [97]3 years ago
6 0
B......these are all sources of energy
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6) If a mutation happens in a cancer-causing gene to change the subsequent protein's function,
Aneli [31]

Explanation:

B) False

Multiple mutations in several protooncogenes and tumor suppressor genes are required to form cancer

Cancer-causing genes, or oncogenes, develop from protooncogenes which regulate normal cell division. They may undergo mutations that alter gene expression, disrupt cell regulation and lead to the transformation of normal cells into tumor cells- their resulting proteins are abnormal or not formed. Tumor suppressor genes, which can halt unregulated cell growth and division, may also become mutated.

Each individual inherits 2 copies of a gene from their parents- a single mutation in one of these does not directly lead to cancer. Multiple activated oncogenes, in turn produce damaged, non functional proteins and together contribute to forming cancers.

Further Explanation:

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes. There are two types:

  • somatic: these only occur within certain cells, and arise from environmental factors such as UV light
  • hereditary: occur within germ cells of the parent and later the fertilized egg which forms a zygote; these are present within all cells of the new organism.

Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly  

6 0
3 years ago
The chemical equation of photosynthesis includes 6O2. Which best describes this substance?
Vaselesa [24]

Answer:

D, a gas produced durning photosynthesis (i think)

Explanation:

Just finished the final exam

6 0
2 years ago
Read 2 more answers
Which of the following is not a type of fault?
icang [17]
I believe the answer would be <span>D.)  Abnormal</span>
4 0
3 years ago
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What is the best explanation if the gel of your PCR product shows smeared bands of multiple sizes? Select one:
trapecia [35]

Answer:

e. None of the above

Explanation:

For me as a Researcher, the reason could be increased Concentration of your DNA sample which you are using as your template. Try to decrease the concentration of DNA (up to 100 ng per reaction is enough and can increase up to 200 ng). so the reason for getting non specific bands is increase concentration of DNA  which results in non specific amplification and also degradation of DNA in the reaction which you can see in your gel electrophoresis results.  

i always corrected my results using the same technique that is lowering the concentration of DNA between 100 and 200 ng per single reaction of PCR.

8 0
2 years ago
Use the image below to answer questions 4-6.
const2013 [10]

i think it is 3a because when they are all together they are in like a clump so

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3 years ago
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