I believe proteins are synthesized from amino acids during synthesis reactions.
Protein synthesis starts with transcription of mRNA from a DNA gene in the nucleus.Various types of RNA may have been synthesized using the appropriate DNA. The RNAs migrate from the nucleus to the cytoplasm where the process of translation takes place. During the process the mRNA with the codons (three nucleotide bases that code for a specific amino acids) is interpreted by the anticodons in the tRNA , thus forming amino acids with together forms polypeptides and then proteins are formed.
Answer:
a. The operon is under positive control
a.) Loss of enzyme synthesis results from loss of regulatory R gene product which is regulated in the presence of Tis ophane for transcription. Absence of (Tis), transcription is positively controlled by regulatory Rprotein
b.) The proposed model reveals Tis / B complex prevents Tis enzymes from undergoing transcription through the RB operator by binding to the B region
the role of the R protein is
-decrease affinity of Tis / B complex to B region of RB
-bind to the R region on RB
- change the conformation of B region
- yield decreased affinity of Tis / B complex when R gene is lacking preventing transcription in the process
Effects of the RB mutations is that R protein will not bind to Tis / B complex to reduce transcription
The role of xylem is to transport water and some nutrients from roots to shoots and leaves.
Answer:
Sexual reproduction is the reproduction of 2 parents father and mother this is like most mammals,this is sexual. Asexual is the reproduction of 1 parent this is like many mushrooms and plants that include budding sporulation and others.
<span>Temperate climates have cold winters and warm summers. The climate is primarily depend upon the latitude. The region near to equator have hot climate known as tropic region. Temperate regions are away from the equator. due to the inclination and globular structure of earth the temperate regions have cold winter and warm summer.</span>
