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pav-90 [236]
3 years ago
12

Directions Rearrange the words to make a meaningful sentence. Write your

Biology
1 answer:
worty [1.4K]3 years ago
3 0

Answer: im just doing challenges

Explanation:

Source: "trust me"

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True or false? One possible way to alter chromatin structure such that genes could be transcribed would be to make histone prote
Dmitrij [34]

Answer:

False

Explanation:

The histones that are more positively charged, tight hardly to negatively charged DNA. So, enzymes, such as acetyltransferases, that reduce the positive charge of histones promote transcription.

Chromatin structure and its modifications can change the package of the DNA and consequently, alter the gene expression. The most common modifications of the chromatin are covalent modifications such as acetylation/deacetylation (by acetyltransferases and eacetylases), methylation (by methyltransferases), and phosphorylation (by kinases).  This is the way of gene expression regulation.

The effects of modifications are different, for example methylation promotes  condensation of the chromatin and as a consequence, prevents binding of transcription factors to the DNA (transcription is repressed).

Acetylation loosens the association between nucleosomes and DNA (because it neutralizes the positive charge of histones) and consequently promotes transcription. Deacetylation is a process opposite to acetylation.

5 0
2 years ago
Explain why organizing your data in an understandable format helps you, and others, make sense of that data.
Simora [160]
<span>It allows us to easily locate the data and use it.It will make it easier to find and correctly identify your files, prevent version control problems when working on files collaboratively.organising will help the users to read the big data in simple and understandable manner.</span>
4 0
3 years ago
Carbohydrates and lipids share which TWO of the following characteristics?
victus00 [196]

Answer:

E  contain primarily carbon,hydrogen,and oxygen

Explanation:

4 0
2 years ago
When might an organism rely on fermentation to produce the energy it needs?
grin007 [14]
<span>When the Krebs cycle will not produce the energy needed</span>
5 0
3 years ago
Read 2 more answers
What are four possible phenotypes in this dihybrid punnett square?
anyanavicka [17]
9:3:3:1
Using white tall (RRBB)and black short (rrbb) as an instance
Then I have white tall:9
White short:3
Black tall:3
Black short: 1
So this shows the phenotypic expression of a heterozygous with a dominant and recessive growth
The four phenotype in this dihybrid in a Punnett square is stated above as 9:3:3:1
Thanks
3 0
1 year ago
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