Answer: promoters
Explanation:
Promoters are DNA sequences that direct RNA polymerase to the initiation site. Promoter sequences are simply DNA sequences that helps in defining where the gene transcription by RNA polymerase will start.
Promoter sequences are located directly upstream and are an important part of the expression vectors as the binding of DNA to the RNA polymeras are being controlled by them.
Answer:
Both natural selection and genetic drift are mechanisms for evolution (they both change allele frequencies over time). The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success.
Answer:
The answer is B - proteins are large molecules
Pansy —> slug —> Thrush
Seaweed—> periwinkle—> seagul
Oak leaf—> caterpillar—> robin
Grass—> cow—> human
