How many codons are needed to specify three amino acids? O Three codons
O Two codons
Five codons
What are codons?

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing