1.) What evidence strongly suggests that RNA instead of DNA was the first genetic material? Select one: a. DNA was too fragile to survive the harsh environment of ancient earth. b. RNA was capable of both self replication and carrying out catalytic functions. c. The ability to replicate evolved much later in DNA. d. RNA is simpler in structure than DNA and fits better inside protocells. e. DNA did not have all the necessary nucleotide components. 2.) Many antibiotics work by inhibiting the synthesis of peptidoglycan, a component of the bacterial cell wall. What is a possible mechanism of action for anti-fungal drugs? Select one: a. inhibiting the synthesis of chitin in fungi b. inhibiting the synthesis of cellulose in fungi c. inhibiting the synthesis of lignin in fungi d. inhibiting the synthesis of peptidoglycan in fungi 3.) How do fungi digest their food sources? Select all that apply Select all that apply: a. by funneling food particles through septa, which break down larger molecules b.by extending hyphae into a food source (e.g., an animal carcass) c.by secreting enzymes externally, directly into their surrounding environment d.by engulfing food particles and digesting them in vacuoles.

1. 1.) What evidence strongly suggests that RNA instead of DNA was the first genetic material?
Select one:
a. DNA was too fragile to survive the harsh environment of ancient earth.
b. RNA was capable of both self replication and carrying out catalytic functions.
c. The ability to replicate evolved much later in DNA.
d. RNA is simpler in structure than DNA and fits better inside protocells.
e. DNA did not have all the necessary nucleotide components.
2.) Many antibiotics work by inhibiting the synthesis of peptidoglycan, a component of the bacterial
cell wall. What is a possible mechanism of action for anti-fungal drugs?
Select one:
a. inhibiting the synthesis of chitin in fungi
b. inhibiting the synthesis of cellulose in fungi
c. inhibiting the synthesis of lignin in fungi
d. inhibiting the synthesis of peptidoglycan in fungi
3.) How do fungi digest their food sources? Select all that apply
Select all that apply:
a. by funneling food particles through septa, which break down larger molecules
b.by extending hyphae into a food source (e.g., an animal carcass)
c.by secreting enzymes externally, directly into their surrounding environment
d.by engulfing food particles and digesting them in vacuoles