3. What does the key term virulent mean?

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

How would you expect the mrna codons that code for the amino acids that make up hemoglobin to compare between humans