Answer:
The correct answer is option b, that is, white.
Explanation:
In the presence of the recombinant plasmid within the colonies disruption of lac z gene takes place, which results in no production of the beta-galactosidase enzyme. Due to the non-existence of the beta-galactosidase enzyme, the colonies remain white.
This appearance of blue color in the colonies takes place when the enzyme beta-galactosidase reacts with the substrate X-gal. Thus, in the absence of beta-galactosidase, no reaction occurs and the colonies remain white.
Answer:
The answer is C
Explanation:
Pythons as an Invasive native Species.
B. Natural selection
Natural selection is the most important force of evolution. Other forces of evolution are mutation, gene flow and genetic drift.
Answer:
i see this was posted 3 days ago, do you still need help with this question?
Explanation:
Answer:
The first anticodon leaves the ribosome through the E-site
Explanation:
Translation is the second stage of gene expression. It occurs in the ribosomes (organnelles of protein synthesis) where amino acid sequence is synthesized using a mRNA template. The tRNA (transfer RNA) is responsible for reading the mRNA codon using its ANTICODON, which is complementary to the mRNA codon.
The tRNA reads the mRNA codon and carries the amino acid that corresponds what it reads. tRNA has three binding sites on the ribosome; A-site, P-site and E-site. A tRNA molecule with the complementary anticodon binds to the codon on the P-site, and carries its corresponding amino acid. Another tRNA with complementary anticodon occupies the A-site, carrying the corresponding amino acid again.
Once both sites are occupied, the tRNA on the P-site transfers its amino acid to the one on the A-site to form a peptide bond. This causes the ribosome to shift the tRNA on the P-site, allowing the one on the A-site to be free. When this happens, the anticodon of the first tRNA on the P-site leaves the ribosome via the E-site in order to bind to another complementary mRNA codon and continue the translation process.
