Hey! Can you guys please help me? What's the blood type in the table?

1. Which, if any, of the blood samples tested can the patient with B+ receive? Explain why.

2. Explain how you were able to use your knowledge of how different types of blood react with Anti-A, Ant-B, and Anti-Rh antibodies to determine the blood types of the four samples.

Which codon is the code for the amino acid histidine (his)?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time