Answer: Despite the availability of antibiotics that lyse E coli cells, the reason this is NOT recommended in course of treatment is because the antimicrobial agents may trigger the lytic cycle and result in increased toxin expression.
Explanation:
Shiga toxin (Stx) are toxins which are produced by shiga toxin-producing Escherichia coli ( STEC). The antimicrobial agents may also trigger the lytic cycle and result in increased toxin expression.
Depression :)......................
Answer:
E. Each codon represents a different amino acid.
Explanation:
The genetic code refers to the set of rules guiding the translation of nucleotide bases in DNA or RNA into an amino acid sequence (proteins). The genetic code contains all the codons in the genome, which is a group of three nucleotide base (triplet-based). Each codon species a particular amino acid, however, more than one codon can code for a particular amino acid. This characteristics of the genetic code is called DEGENERACY.
The genetic code is said to be nearly universal because the same codon encodes the same amino acid in almost all living organisms with only few exceptions. The nonoverlapping nature of the genetic code refers to the fact the three bases of a codon are read independently from the bases of another codon i.e. codons do not overlap.
A codon represents one amino acid but more than one codon can represent the same amino acid. Hence, option E is untrue
Answer:
C
Explanation:
Trees take up carbon dioxide from the atmosphere and reduce to make carbohydrates. This is powered by the energy of the sun that is taped by chlorophyll pigments during photosynthesis. The energy is used to split water molecules into H+ and O2-. Then the following chemical reaction ensues;
6CO2 + 6H2O ------> C6H12O6 + 6O2
Sample Response:
Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat. Bacteria are also helpful because they are used in medicine to help us overcome disease. Bacteria are harmful because they can cause tooth decay and illnesses that can be either common or quite serious.
This is a sample response, so it's 100% correct. Peace!
