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yKpoI14uk [10]
3 years ago
7

The individual sacs formed by the inner membrane are called

Biology
1 answer:
Sphinxa [80]3 years ago
4 0

Answer:

Thylakoids

Explanation:

They are arranged in stacks

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Plants use cellulose to build strong structures. what is cellulose made of?
IgorLugansk [536]
-simple carbohydrates linked together (sugar molecules)

plz...give me brainliest
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3 years ago
"During embryonic development red blood cells begin to develop in patches called blood islands. The blood cells secrete growth f
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Answer:paracrine

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Paracrine secretion do not use ducts.

Similar to paracrine is the endocrine ,in which the secretory products goes through the basal lamina ,into the underlying connective tissue and into the vascular syatem.they too do not use ducts

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3 years ago
An alternation of generations for plants includes a ____ gametophyte generation and a ___ sporophyte generation.
kenny6666 [7]
An alternation of generations for plants include a haploid gametophyte and a diploid sporophyte.
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3 years ago
In colorectal cancer, some tumor suppressor genes are inactive. This is an important factor resulting in uncontrolled cell divis
tresset_1 [31]

Answer/Explanation:

(1) a mutation in the coding region, resulting in an inactive protein

To check to see if there is a mutation, you could extract the DNA from the cancer cells and then perform PCR to amplify the gene of interest. You could then perform sanger sequencing and compare the sequence to the normal gene to see if a mutation is present. To test the effect of the mutation, you would want to see if an active protein has been formed.

To see if a normal sized protein has been formed, you could perform a western blot, comparing the protein band to the WT protein band. If the protein is absent or much smaller, it is likely not a functional protein.

(2) epigenetic silencing at the promoter of the gene, resulting in reduced transcription.

To check for changes in the epigenetic landscape of the promoter, you could perform chromatin immunoprecipitation by extracting the chromatin from the tumour cells and using antibodies for different chromatin marks to see what has changed between the normal cells and the tumor cells. E.g. H3K9me3, H3K27me3. You would perform a pull down with the antibody of interest and then PCR for your promoter to specifically look at changes at that gene compared to normal cells. To test DNA methylation, you could perform bisulfite sequencing.

To see how transcription is affected, you could extract RNA from the tumor and normal cells, and compare the levels of RNA between the two samples by qRT-PCR

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3 years ago
What is the general shape of these cells<br><br>​
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What cells are you talking about?
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2 years ago
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