Awoman with blood type ab gave birth to a baby with type b blood, two different men claim to be the father, one has type a blood and the other type b. can the genetic evidence decide in favor of either?

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.

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What is the next step in muscle contraction after the actin changes shape? (apex)