A gene consists of which of the following? 1) A sequence of amino acids that create a specific protein.

2) A sequence of tRNA that brings the correct amino acid to the ribosome.

3) A sequence of bases of mRNA that code for a specific protein.

4) A sequence of bases on DNA that code for a specific protein.

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

What is the difference between how ionic and covalent bonds form