If a tongue cell in an human has 20 chromosomes, how many chromosomes will be found in its sperm cells? 20
40
10
5

One of the largest seafood exporters to the united states is a. china b. brazil c. mexico d. saudi arabia

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

Donde se encuentra el adn nuclear en un organismo eucariota?