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-BARSIC- [3]
2 years ago
9

Septa are..

Biology
1 answer:
maks197457 [2]2 years ago
8 0

Answer:

septa are thin walls or partitions between the internal chambers.

Explanation: I wasn't really good at septas but i think this is correct

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What is the human embryo called after the eighth week of development?
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Answer:

fter 8 weeks of pregnancy it's called the fetus

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3 years ago
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Which of the following lists steps of mRNA production in eukaryotes in the correct order?A) 5' cap addition, addition of poly-A
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Answer:

The correct answer is B) Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane.

Explanation:

The transcription process in eukaryotes takes place in the nucleus of the cell and after transcription post-transcriptional modification also takes place in the nucleus which is necessary to guide the mRNA out of the nucleus.

First, the process of transcription takes place in which DNA is transcribed to mRNA by an enzyme called RNA polymerase. After transcription post-transcriptional modifications takes place in the given order.

1. Capping: In capping process 7-methylguanosine is added by capping enzyme at 5' end of mRNA.

2. Polyadenylation: In polyadenylation, many poly-A residues are added at the 3' end of the mRNA called the poly-A tail.

3. Intron splicing: Introns are the non-coding sequence present in mRNA which are spliced out of mRNA and all exons are joined together.

After these post-transcriptional process, the mature mRNA is transported out of the nucleus through the nuclear membrane.

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3 years ago
What determines the chemical properties of minerals
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What determines the chemical properties is : color, hardness, luster, crystal forms, density, and cleavage.
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Cyclic photophosphorylation definition
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Which of the following BEST describes the kinetochore? the array of vesicles that will form between two dividingnuclei and give
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Answer:

a structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules

Explanation:

Kinetochores have  vvery important role in the cell division-mitosis.

During the metaphase of mitosis, spindle fibers attach to kinetochores. Some of the microtubules bind to kinetochore (kinetochore microtubules) while other don’t: they connect with the microtubules from the opposite pole, stabilizing the spindle.

During the anaphase, kinetochore microtubules pull chromosomes toward poles, helping the sister chromatids separate from each other.  

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