Most scientists describe biodiversity in terms of the number of species that have been discovered and described in scientific journals. roughly 1.8 million species have been described, although most scientists think there could be as many as 50 million species or more currently living on earth. however, in the video, craig venter seems more interested in the total number of discovered genes (he gives a total number of 20 million genes in the video) than the total number of discovered species. why is that?
a. for recombinant dna technology or for the creation of synthetic life, only the gene that produces a particular desired product is needed, and not the entire organism that carried the gene.
b. identifying species takes too much time, and the rules state that new species must be identified and described in a scientific journal before their genes can be studied.
c. he is not interested in entire organisms, since the entire genome of each one must be sequenced in order to find anything useful.
d. the microbes that the team is collecting are actually all the same species, but they each carry a unique set of genes.

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You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation

During dna replication,each strand of dna is used as a template to produce a complementary strand of dna. this process is shown below. which base will attach to location