What biochemical clues support the idea that all living things evolved from one common ancestor?
What will be an ideal response?
All cells identified to date use DNA for carrying genetic information, use RNA for protein synthesis, use ATP as a cellular energy carrier, and build proteins from the same 20 amino acids.
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Multiple lines of evidence indicate that complex multicellularity has evolved at least six different times. Which of the following superkingdoms include organisms that exhibit complex multicellularity?
A. Opisthokonta, Archaeplastida, Stramenopila B. Opisthokonta, Amoebozoa, Archaeplastida, Stramenopila C. plants, animals, fungi, slime molds D. plants, animals, fungi, slime molds, red algae, green algae, brown algae E. green algae (and land plants), red algae, brown algae, animals, fungi, slime molds
Solid worms that lack a body cavity are known as
A. acoelomates. B. triploblastic. C. diploblastic. D. pseudocoelomates. E. coelomates.
How could the Hershey and Chase experimental procedure be redesigned to support a hypothesis that RNA carries genetic information?
A. Extract RNA from Escherichia and mix it with the T2 bacteriophage B. Replace T2 bacteriophage with an RNA virus C. Replace Escherichia with an RNA virus D. Use 35S to label an RNA virus and 32P to label a DNA virus E. Use 35S and 32P to label the same components of an RNA virus and T2 bacteriophage, then add both viruses to Escherichia cells
Which is false concerning a typical polysomnography assessment:
-involves the use of an electroencephalography assessment -involves the use of an electrocardiogram assessment -is the 'gold standard' of sleep/wake assessment -all of the above