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Sergeu [11.5K]
3 years ago
9

Sinanthropus pekinenis was victim of cannibalism

Biology
1 answer:
Tom [10]3 years ago
5 0
Yes he was he was a victim on cannibalism
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What is a station model used to create?
raketka [301]

What is a station model used to create?      

The correct answer is D. surface weather map        

Station models are illustrations that shows the weather occurring at a given reporting station. These are symbolic illustrations. These models were created to fit a number of weather elements into weather maps.    

7 0
3 years ago
Where does the first stage of cellular respiration ,glucose occur
german
All stages respiration occur in every single cell.
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3 years ago
Read 2 more answers
How does histone modification silence transcription? Check all that apply.A-Histone demethylase demethylates the histone tail, w
viktelen [127]

Answer:

The correct answer will be option- A.

Explanation:.

Histone demethylases are the enzymes which controls the gene expression of any gene. These enzymes play an important role in epigenetic control of gene. The post-translational modifications like methylation and acetylation changes the structure of the chromatin which alters the interactions of the chromatin.

The histone demethylase removes the methyl group from the histone tails which causes the condensation of the loose chromatin structure to form heterochromatin.

Thus, option-A is the correct answer.

5 0
3 years ago
Suppose a mutation affects an enzyme that is required to repair the damage to DNA caused by the loss of purine bases. This mutat
Vsevolod [243]

Answer: There's no way one species can become another through depuranization, which is a random change.

Explanation:

In cells, environmental (chemical or physical) and metabolic factors can cause DNA damage, which is the molecule that stores genetic material. In these cases, the damage done to the DNA is repaired.

<u>Many of these lesions cause a permanent structural damage to the DNA, which can alter the ability to be transcribed, or can cause mutated genes to be transcribed resulting in another protein.</u> Particularly, depurination is the hydrolytically cleavage of the β-N-glycosidic bond between the purines (adenosine or guanosine) and the carbon of the sugar group found in the DNA. This mutation results in the loss of the purine base and leads to the formation of apurinic site and results and severely disrupts the DNA structure. The most important causes of depurination is the presence of endogenous metabolites inside the cell as a result of various chemical reactions and due to the presence of mutagenic compounds. However, these apurinic sites <u>are usually repaired by portions of the base excision repair (BER) pathway</u>.

There's no way one species can become another through depuranization, which is a random change. Because it is highly unlikely that 5000 mutations are able to accumulate every day without being repaired, and that they are just the right mutations to have the same characteristics as a chimpanzee. <u>If the depurinations are not repaired, the cell will most likely either die or become cancerous.</u>

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3 years ago
What is adolesence ? when does it occur, what are the changes that occur in adolescence​
mart [117]

Answer:

Adolesence is the period following puberty where one develops from a child to an adult. They changes that occur are involved with puberty and include growth of sexual organs, menstruation, and an assortment of chemical changes in the brain. It typically occurs from age 9 throughout the teenage years.

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