Answer: Options A, B, C and D are correct.
Explanation: They can trigger the activity of histone acetyltransferases.
These RNAs functions by binding to histone-modifying complexes, to DNA binding proteins (including transcription factors), and even to RNA polymerase II.
They can silence genes by promoting the formation of euchromatin by arranging hetero- or euchromatic regions into close proximity may stabilize these domains or it may control the spreading of post-translational modifications (PTMs) to nearest chromatin.
They are actively involved in X chromosome inactivation.
They can regulate the translation and stability of mRNAs.
In Eukaryotic cells RNA transcription is a closely regulated process. Transcription of a lncRNA may regulate the transcription of nearby mRNA genes, either positively (maintaining active chromatin structure) or negatively (for example, colliding polymerases). In these cases, the RNA product may have no importance at all, or it could have an additional function.
Answer:
The kingdom Plantae consists of four major plant groups on land: bryophytes (mosses), pteridophytes (ferns), gymnosperms (cone-bearing plants), and angiosperms (flowering plants). Plants may be categorized as vascular or nonvascular. A vascular plant has tissues for transporting water or sap. Nonvascular plants do not.
Answer: 31,000 meters (m) or 31 kilometers (km)
Explanation:
6,000 meters + 4,000 meters + 12,000 meters + 8,000 meters=31,000 meters
Simplified explanation: 6+4+12+8=31
Hemispheric specialization makes having a stroke on the left side of the brain more severe to recover from than on the opposite side.
Left hemisphere stroke :
When the blood flow towards the left hemisphere of the brain is reduced it causes a stroke. When the left side of the hemisphere gets a stroke it causes paralysis of the right side of the body. It affects the speech of the person. A person is not able to read, write, talk, walk, vision gets blurry, etc. This condition is severe and is not recoverable as it occurs in the left side of the brain. In severe cases, the person can go into a coma.
Learn more about left hemisphere stroke from here,
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Answer:
C and D
Explanation:
The nucleus (the dark blob in the center of the cell) is clearly visible in every cell in the diagram, which means that this is a eukaryotic cell undergoing mitosis. F is, therefore, not a correct answer. The product of mitosis is two genetically identical daughter cells.
Binary fission occurs prokaryotic cells, and does not apply in this case, so A is not a correct answer.
Cells do not undergo $exual reproduction, so B is not a correct answer.
While eukaryotic cells generally do have ribosomes, it is possible to infer that the cells contain ribosomes. However, the ribosomes are not visible in the diagram, so E is not a correct answer.