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pychu [463]
4 years ago
13

Where does the protien-building begin? A. enzyme B. cytoskeleton C. DNA D. cell membrane

Biology
1 answer:
galben [10]4 years ago
3 0

Answer: Option C

Explanation:

Protein building begins on the DNA strand. Usually, the DNA contains genetic information which flows from nucleic acids to proteins in a series of steps:

1) Replication: this is the first step. It involves the copying of parental DNA into daughter copies.

2) Transcription: this is the second step. Here, parts of the coded genetic message in DNA are copied precisely in the form of RNA - in the form of messenger RNA (mRNA).

3) Translation: this is the third step. Here, genetic message coded in mRNA is translated, on the ribosomes, into a protein with a specific sequence of amino acids.

Simply put, DNA makes RNA, and RNA makes protein.

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According to the theory of plate tectonics what May form where plates move together?
DochEvi [55]

Mountains form when they move together
4 0
3 years ago
In two or three well-developed paragraphs, explain how pollution can come from both natural sources and from human activities. P
spayn [35]

Pollution can come from both natural sources and human activities depending on the type of pollutant.

<h3>What is pollution?</h3>

It is the release of substances into the environment to the extent that the well-being of plants, animals, and humans starts getting affected.

Substances that are released into the environment to the extent that they start affecting the organisms in the environment negatively are known as pollutants.

Pollutants can come from natural sources or as a result of human activities.

For example pollutants such as oxides of sulfur, methane, carbon dioxide, etc. can come from natural processes such as volcanic eruptions, activities of microbes, etc.

Pollutants such as oxides of carbon and sulfur can also be generated as a result of human activities such as the burning of coal, technological inventions, etc.

More on pollution can be found here: brainly.com/question/23857736

#SPJ1

8 0
2 years ago
The DNA sequence of a gene changed from AACTTG to AACATG. What kind of mutation occurred?
Katena32 [7]
Insertion mutation takes the T out and replaces it with an A. 
7 0
4 years ago
Read 2 more answers
EOC Biology STAAR Test Prep
Bond [772]

Answer:

D. A, B, AB, or O

Explanation:

We can start by visualizing all the possible genotypes of the offspring by drawing a Punnett square, which is a visual representation of the different possible combinations of alleles:

Individual 1 = AO, Individual 2 = BO

     A   O

B  AB  BO

O  AO  OO

Here we can see that there are 4 possible genotypes: AB, BO, AO and OO based on the alleles of the parents. Now we can match the genotypes to phenotypes to answer the question:

A and B are codominant, meaning that both will be expressed equally if both are present. Therefore the genotype AB will result in an AB phenotype.

Next, since A and B are both dominant over O, they are the alleles that will be expressed in the phenotype if paired with an O. This means that the genotype AO will result in an A phenotype, and likewise, genotype BO will result in phenotype B.

Finally in the genotype OO, although O is a recessive allele, there are no dominant alleles here to mask them, therefore O is expressed in the phenotype.

Hence, from the genotypes AO and BO, the possible offspring genotypes are AB, BO, AO and OO, translating to the possible phenotypes: A, B, AB or O.

Hope this helped!

7 0
3 years ago
Read 2 more answers
The myocardium receives its blood supply from the coronary arteries. True or False
Cerrena [4.2K]

Answer:

The statement is true.

Explanation:

The myocardium is the muscle tissue of the heart, a muscle responsible for pumping blood through the circulatory system through contraction. It receives a part of the large volume of blood that passes through the atria and ventricles. A system of arteries and veins (coronary circulation) provides the myocardium with oxygen-rich blood and allows the return of venous or oxygen-poor blood to the right atrium. The right coronary artery and the left coronary artery are the branches of the aorta responsible for the blood supply.

7 0
4 years ago
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