Cows and mice have the same amino acid sequence for topoisomerase I, an enzymatic protein involved in unwinding the DNA double helix. The fact that these two different species have this identical amino acid sequence provides evidence that -

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Some steps in cell division are shown below: 1. chromosomes condense and pair up 2. segments of dna of sister chromatids twist and cross 3. exchange of dna occurs between chromosomes 4. four daughter cells are created that are haploid which of the following steps is least likely to occur during meiosis 1?

Alizard lives in a desert. which would be an adapation for this lizard?