Length times width= Base
Then
Base times height= Area
Answer:
Blood vessels constrict
Explanation:
On seeing danger, impulses are sent to the adrenal medulla. It responds by secreting adrenaline into the bloodstream. This results in the following:
- Increased heartbeat
- Diversion of blood from alimentary canal and skin to skeletal muscles.
- Increased breathing rate and depth
- The liver releases more glucose.
These changes increase energy production especially in the skeletal muscles and prepare animal for sudden fight or flight.
The processing of Arabidopsis thaliana microRNAs (miRNAs) from longer primary transcripts (pri-miRNAs) requires the <u>activity of several proteins</u>, including DICER-LIKE1 (DCL1), the double-stranded RNA-binding protein HYPONASTIC LEAVES1 (HYL1), and the zinc finger protein SERRATE (SE).
Morphological appearance of weak SE mutants is reminiscent of plants with mutations in ABH1/CBP80 and CBP20, which encode the two subunits of the nuclear cap-binding complex.
The cap-binding complex is necessary for proper processing of pri-miRNAs. Inactivation of either ABH1/CBP80 or CBP20 results in decreased levels of mature miRNAs accompanied by apparent stabilization of pri-miRNAs.
To learn more about dual roles of the nuclear cap-binding complex and SERRATE, here
brainly.com/question/16337764
#SPJ4
Answer:
RNA splicing
Explanation:
RNA splicing is the mechanism by which messenger RNA precursors (pre-mRNAs) are processed to generate mature mRNA transcripts in eukaryotic genomes. During RNA splicing, the non-coding regions of the pre-mRNA sequence (i.e., introns) are removed, while coding regions (i.e., exons) are joined together. In consequence, the resulting mature mRNA is shorter than the pre-mRNA. RNA splicing reactions are catalyzed by the spliceosome, an RNA-protein complex that removes introns from the pre-mRNA. After RNA splicing, the mature mRNA is used as template to produce a specific amino acid sequence, where triplets of RNA nucleotides (codons) in the mRNA are used to assemble specific amino acids in order to form a protein.
