The correct answer is Axial Position
Reason:
When axial groups lie on the opposite sides of the ring, they are capable of holding large molecule and are stable as there is less steric hindrance between those groups. Also the molecular distance between them is large.
Answer:
A: A way for an ecosystem to recover after a disturbance.
Explanation:
Adaptation: any change in the structure or behavior of a species which helps it to become better fitted to survive and reproduce in its environment.
She would ask if the client has any family members that can provide transportation
Answer:
The most likely cause of this patients dyspnoea is chronic bronchitis due to his history of chronic smoking and the recent production of green phlegm with an increased mucus production
Therapy is generally focused on alleviation of symptoms.Toward this goal, a doctor may prescribe a combination of medications that open obstructed bronchial airways and thin obstructive mucus so that it can be coughed up more easily. Care for acute bronchitis is primarily supportive and should ensure that the patient is oxygenating adequately. Bed rest is recommended.
Acute treatment for the patient would be therapy with short-acting agonists or anticholinergic bronchodilators if there is acute exacerbation to help dilate the bronchioles and reduce inflammation. Additionally a short course of systemic corticosteroid therapy to aid with inflammation reduction and allow phlegm to be coughed up more easily
The most helpful intervention to help prevent future exacerbation is the avoidance of environmental irritants, especially cigarette smoke. and reducing the amount of smoking per day this will help control cough and sputum production in patients with chronic bronchitis
Answer:
- Duplex RNA (dsRNA) can suppress the expression of a gene.
- miRNAs are short, single strands approximately 21 nucleotides long.
- miRNAs suppress gene expression by interfering with transcription.
- RNA interference can temporarily suppress the expression of a target gene.
Explanation:
The RNA interference (RNAi) mechanism is a naturally occurring biological process by which an organism suppresses gene expression by using sequence-specific small non-coding RNAs that are complementary to RNA (posttranscriptional silencing) or DNA (transcriptional silencing) sequences. Since its discovery, this mechanism has been exploited in molecular biology to control the expression of target genes. There are different classes of non-coding RNAs which are able to trigger RNAi gene silencing: microRNAs (miRNAs), small interfering RNAs (siRNAs), piwi-interacting RNAs (piRNAs, only present in animals), etc. During their functioning, these non-coding RNAs are loaded into the RNA-induced silencing complex (RISC) to direct them to target sequences and trigger RNAi (for example, by cleaving target mRNAs). miRNAs are short, evolutionary conserved RNAs, that associate to the RISC complex in order to trigger both transcriptional and posttranscriptional gene silencing. During their biogenesis, small non-coding RNAs are double-stranded RNA (dsRNA), but they lose a strand (the passenger strand) when associate with the RISC complex, conserving only one strand (the guide strand) that bind by complementary base pairing to target sequences (either DNA in the nucleus or RNA in the cytoplasm).