EE : 0
Ee: 100%
e: 0
Red eyes : 100%
White eyes : 0%
Michael is extremely fearful of germs. He sleeps in a special chamber at night, wears gloves, and will only eat food that he can unwrap. His symptoms are most characteristic of specific phobia disorder.
Complete question: <em>"RNA plays important roles in many cellular processes, particularly those associated with protein synthesis: transcription, RNA processing, and translation. Drag the labels to the appropriate bins to identify the step in protein synthesis where each type of RNA first plays a role. If an RNA does not play a role in protein synthesis, drag it to the "not used in protein synthesis" bin.</em>
<em>1. transcription/RNA processing
</em>
<em>2. translation
</em>
<em>3. not used in protein synthesis
</em>
<em>a) snRNA
</em>
<em>b) tRNA
</em>
<em>c) mRNA
</em>
<em>d) RNA primers
</em>
<em>e) pre-mRNA
</em>
<em>f) rRNA</em>
Answer
1. transcription/RNA processing:
<em>a) snRNA</em>
<em>c) mRNA</em>
<em>e) pre-mRNA</em>
2. translation
<em>b) tRNA</em>
<em>f) rRNA</em>
3. not used in protein synthesis
<em>d) RNA primers</em>
Explanation:
There are many RNAs, each in charge of performing a different function.
- preRNA is the precursor of the mature mRNA. These molecules possess long intermediate sequences called introns that do not codify for proteins. It occurs a posttranscriptional modification that eliminates introns and makes the RNA to get mature as mRNA.
- snRNA means <em>"small nuclear RNA"</em>. These are small RNA molecules located in the nucleus and are implicated in the mRNA maturation process. They associate with proteins composing the small nuclear ribonucleoproteins, and their function is to contribute to the initial mARN processing that transcribes from DNA and that must maturate to be exported from the nucleus. These molecules eliminate the introns.
- mRNA means "<em>messenger RNA</em>". These molecules are carriers of the genetic information and are in charge of transporting it from the genome to the ribosomes. They are the mold for the new protein synthesis. Their nucleotide sequence is complementary with the nucleotide sequence of a particular DNA segment.
- rRNA means "<em>ribosomal RNA</em>". They are the principal ribosomal component. Ribosomes are constituted by two subunits. One of them is a big RNA molecule associated with about 20 proteins. The other subunit is composed of three RNA molecules associated with about 50 proteins.
- tRNA means "<em>transference RNA</em>". These molecules are in charge of transferring activated amino acids from the cytosol to the ribosomes where the new protein is being synthesized.
Protein synthesis is initiated when mRNA meets a free ribosome, the primary structure for protein synthesis. Ribosomes can be found in the rough endoplasmic reticulum or floating in the cytosol. They read the mRNA code and add the correct amino acid using transference RNA to build the protein.
Spontaneous neoplasms of the central nervous system of the cat, The statement is correct.
<h3>what are the major parts of the central nervous system ?</h3>
The central nervous system have two parts such as the brain and spinal cord, where the brain plays a crucial role in controlling most of the body functions like awareness, movements, thoughts, speech, and memory.
Spinal cord pathway involve in some reflex activities without the the involvement of brain, it is connected to brain stem a section of the brain where cranial nerve is present.
Nerve roots present in the spinal cord, this cord carries signals back and forth between the brain and the peripheral nerves, there is a fluid called Cerebrospinal fluid present between the brain and the spinal cord.
The cerebrospinal fluid flow between 2 meningeal layers called the pia matter and the arachnoid, another outermost thicker layer act as a protective shield called as dura matter.
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Answer:
If, over time, a body of limestone has been squeezed and deformed by great heat and pressure deep beneath the Earth's surface, its structure and composition changes to form a recrystallised limestone known as marble, which can contain over 95% calcium carbonate.