The correct answer is: the " phospholipid bilayer " .
__________________________________________________
→ { which is hydrophobic (water-repellent) due to its waxy-like composition of many lipids.}.
__________________________________________________
Hope this helps you!
Best wishes!
__________________________________________________
E is for Ethical, an upright person
N is for Noble, self-sacrificing
E is for Excellent, of the finest character
R is for Remarkable, so exceptional
G is for Genteel, elegantly mannered
Y is for Youth, eternally young at heart
The nurse should respond BY APPLYING GENTLE PERINEAL PRESSURE.
Application of gentle perineal pressure will prevent the excessive rapid expulsion of the foetus head which can cause perineal laceration in the mother.
The list of <span>not correctly paired parasympathetic outflow </span><span>would be:
1. nerves coming from the sacral section innervate lungs and heart
</span><span>2. vagus nerve stimulates many glands in the head like lacrimal and salivary glands
</span><span>
Sacral region is located in the tailbone, near the hip. The location itself too far from lungs and heart, which actually nerved by vagus.
</span>Lacrimal and salivary glands are nerved by the submandibular (cranial VII) and glossopharyngeal(cranial IX), not vagus(cranial X)
<h2>A) option is correct </h2>
Explanation:
RNA processing involves 5'capping,splicing,polyadenylation and RNA editing
1) 5'capping
- It is the first modification event in the pre mRNA that occurs after 20-30 nucleotide addition
- In capping a 7 methyl guanosine(cap) is added to the 5' end of pre mRNA
- Capping protects 5'end of pre mRNA from degradation by exoribonucleases and facilitate transportation form nucleus to cytoplasm
2) Splicing
- Splicing is the second modification event of pre mRNA and occurs in nucleus just after transcription but before the RNA moves to the cytoplasm
- In RNA splicing non coding regions of pre mRNA called introns are removed and coding regions called exons are religated
3) Polyadenylation
- Most of mature RNA have 50-250 adenine residues at the 3'end called Poly A tail
- These nucleotides are not encoded by the genome but are added after transcription,process is called polyadenylation
- Polyadenylation is both template and primer independent process catalysed by polyadenylate polymerase(PAP)
- PAP uses ATP as a precursor and adds the nucleotides using same chemistry as RNA Polymerase
- Poly A tail protects mRNA from exonucleases at 3' end
4) RNA editing
- RNA editing is defined as changing of nucleotide sequence of RNA resulting mature RNA differs from which encoded by genomic sequence
- RNA editing is carried out in two different ways:
- Site specific base modification RNA editing is the one in which deamination of cytosine and adenine are common types of modification
- Insertional or Deletion type of RNA editing is the one which is more common where uridine is inserted or deleted from specific region after transcription
