Answer:
D
Explanation:
D is mitochondria, which are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration.
Answer:
The transcription rate will slow down in the cells that carry mutant sigma factor.
Explanation:
Sigma factor play an important role during initiation of transcription.The sigma factor binds to the core RNA polymerase(that contains alpha,beta,beta dash and omega subunit) to form hollow enzyme.
The binding to sigma factor to core RNA polymerase initiates the formation closed promoter complex and the release of sigma factor result in the formation of open promoter complex that signals the ending of transcription initiation.
Now if the sigma factor binds tightly to the core RNA polymerase then it will be difficult for the sigma factor to get dissiciated from hollow enzyme,as a result transcription will remain in the initiation phase. So the process cannot enter the elongation phase.
Answer:
anthropology
Explanation:
Anthropology involves study of biological facts about the earlier and present day life forms such as human beings, chimpanzees, primates etc. and also include study of culture associated with these life forms by intervening their languages, traditions, behaviour, analysis of material remains etc. in order to understand the pattern and origin of evolution not only biologically but socially as well.
An anthropologists work to solve the problems of real world by utilizing their methods and ideas
Answer: Improvements helped allow scientists to see the cells in greater detail and enable them to discover cells in all types of living matter.
Hope this helps. Goodluck
UAG and UAA are the other two stop codons.
Explanation:
In a mRNA sequence there are codons which represents the termination of polypeptide chain getting formed. Such triplet sequence which instead of coding for amino acids stops the chain is termed as stop codons.
The start and stop codons decide the length of the polypeptide chain or primary protein transcript or simply the whole protein molecule.
In the genetic code table there are 3 stop codons these are:
UAG
UAA
UGA
Mutation in any of these stop codons would cause the loss of protein function.
Once the stop codon sequence comes the protein synthesis stops.
