A certain bacterial mRNA is known to represent only one gene and to contain about 800 nucleotides. If you assume that the average amino acid residue contributes 110 to the peptide molecular weight, the largest polypeptide that this mRNA could code for would have a molecular weight of about _______.
A) 800.
B) 5,000.
C) 30,000.
D) 80,000.
E) An upper limit cannot be determined from the data given
Answer:
c. 30,000
Explanation:
The gene has a total of 800 nucleotides and would be transcribed into an mRNA having about 800 nucleotides. The nucleotides of mRNA are read in the form of genetic triplets. This means that the mRNA with 800 nucleotides would have about 800/3= 266.66 or 266 genetic codes. This mRNA would be translated into a polypeptide chain having around 266 amino acids.
One amino acid contributes 110 to the molecular weight. The total molecular weight of the largest possible polypeptide that can be encoded by the said gene would b 266 x 110= 29260 (around 30,000).
Answer:
Genetics- this is the scientific study of genes and heredity.
Breeding- The production of offspring by animals.
Answer:
1). Renewable energy resources include: solar, wind, water (hydro), biomass, and
2). Nonrenewable energy resources include: coal, nuclear, oil, and natural gas.
Explanation:
Renewable energy resources are replenished naturally and over relatively short periods of time while Nonrenewable energy resources as their name applies are limited in their quantity and supplies too.
These forms of energy are primary formed when fossil fuels are destroyed by use, i.e they are not been recovered(nonrenewables); which brings in alternative sources(renewables).
Human supplies of fossil fuels and minerals are dwindled fast. These are nonrenewable resources as we cannot produce them by any process. Our demand for these limited resources, however, is constantly increasing. So we to cut down their wastages, find acceptable alternatives and also recycle them where possible.
