The nuclear envelope is perforated with pores to allow it to move in and out of the nucleus.
Every cell in the body has a nucleus, except for mature erythrocytes (red blood cells). While some cells contain more than one nucleus such as skeletal muscle and some other cells contain several nuclei.
The nuclear envelope surrounds the nucleus. i. e. largest organelle of the cell. It has a similar structure to that of
the plasma membrane. But the nuclear envelope contains tiny pores that allow a few substances to pass between it and outside the cytoplasm, i.e. the cell contents excluding the nucleus.
Therefore, the nuclear envelope is perforated with pores to allow it to move in and out of the nucleus.
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Q6: A
Q7:D
Q8:C
Reasoning
Q6: Based on all the other questions talking about common ancestors I deduced that to find a “common” ancestor they need to find things that are the same.
Q7: All arthropod have a exo skeleton for example a lobster or crab. They all have a head, abdomen and thorax for example ants. They all have legs with joints for example a spider.
Q7:So bones are traveled down by ancestors so the types of bones stay the same but natural selection has changed them to better fit their environment.
Answer:
the correct answer is snakes and lizards
To find the functional connection's purpose in <em>A. thaliana's</em> chromatin, transcription, and splicing. It was studied and evaluated with the RNAPII processivity (involvement of TFIIS), chromatin structure (roles of BRM, SWI3c, and H1.3 in AS), and spliceosome formation were all investigated at three separate levels (characterization of the role of spliceosome disassembly factor NTR1 in the selection of splice sites).
The alteration of RNAPII elongation rate as the mechanism for NTR1 and TFIIS influences splicing.
Lack of NTR1 causes both localized lower RNAPII levels at those splice locations as well as defective splicing. This can be translated as quicker transcription elongation over those sites in accordance with the kinetic concept of transcription/splicing coupling.
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