George beadle and edward tatum used mutant strains of neurospora to formulate the one-gene-one-enzyme hypothesis. researchers later updated this hypothesis to propose that one gene encodes one polypeptide because proteins can have multiple subunits. consider a heterotrimeric protein with all unique subunits. how many genes are required to form this protein?

your answer is "the 1950's"

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

wegner's theory did not explain how the continents could move

explanation: