Good environmental decisions need to have scientific facts thus in order to make informed decisions,policy makers are advised by letter C. Environmental scientists. In addition, not only scientific means is needed to have a good environment but also should include the economic,social and ethical aspects.
The answer is Cortisol ad
ADH. The hypothalamus produces arginine-vasopressin (AVP) and corticotrophic-releasing
hormone (CRH). CRH induces the pituitary to produce cortisol which is known as
a stress factor. Cortisol then induced the hypothalamus to produce vasopressin
( also ADH ) that prompts an increase reabsorption of water and minerals in the
kidneys.
A- growing polypeptide B- Lone amino acid
C- tRNA D- Anticodon
E- mRNA F- Small ribosomal subunit
G- codon H- Large ribosomal subunit
Explanation:
Methionine (start codon) , leucine, methionine, arginine, aspartic acid, glycine, glycine, leucine, histidine, stop codon
Three types of RNA that takes part in the translation are:
mRNA: It is formed by the process of transcription. The DNA strand is copied as mRNA with help of RNA Polymerase. The mRNA strand is single- stranded and consists of codons which code for amino acids for the protein synthesis. Not full sequence of mRNA codes for amino acid chain there are non-coding regions called introns which are removed during splicing and only exons code for the amino acid sequences.
tRNA: It brings the correct amino acid to the growing polypeptide chain by reading the codons from the mRNA. It has anticodon which helps in bringing the correct amino acid coding to mRNA sequence.
rRNA: rRna plus protein and ribosome makes up rRNA. The ribosomes are called protein factory, because growing polypeptide chain is formed here. They are responsible for reading the correct amino acid bonding to form polypeptide. They are having two subunits smaller and bigger depending on their sedimentation rate by centrifugation.
In eukaryote,s protein synthesis occurs in the ribosomes which are present in the cytoplasm of the cell.
B. All the three nucleotides that code for amino acid are important because any base difference in amino acid will change the protein formed due to amino acid difference.
A DNA molecule is made up of nucleotides.Each nucleotide is made up of a nitrogen base, a sugar molecule and a phosphate group. There are 4 nitrogen bases such as adenine and guanine known as purines, thine and cytosine are known as pyramidine. These nitrogenous base are arranged in a sequence attached to each other by hydrogen bonding into anti-parallel strands. Therefore, the structure of DNA is termed as the double helical model.
