Sickle cell anemia is caused by a mutation that alters red blood cells. Using the diagram below, answer the following questions for 1 point each:
1. Describe the mutation in the DNA.
2. Describe the change it caused in the mRNA.
3. Describe the change it made in the protein.

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.

Is there any solid scientific evidence that humans have been cloned?

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?