In your 11th year in the field you discover what you think is the common ancestor of the new species of ape and all other gorillas. What types of data would give you the best information on the environment of this ancestral organism?
A. gene sequencing of the new species of
ape
B. anatomical features of the new species of
ape
C. behavior of the new species of ape
D. fossils of plants and animals found with the
fossilized common ancestor
E. anatomical features of the fossilized
common ancestor
D
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The genetic code is essentially the same for all organisms. From this, one can logically assume which of the following?
A) A gene from an organism can theoretically be expressed by any other organism. B) All organisms have experienced convergent evolution. C) DNA was the first genetic material. D) The same codons in different organisms translate into different amino acids. E) Different organisms have different types of amino acids.
The extracellular matrix of a plant cell is composed of:
A. collagen. B. cadherin. C. cellulose. D. All of the above are correct.
Competitive advantages for cyanobacteria in the aquatic environment include ________.
A. the ability of many to fix nitrogen B. the production of hydroxamates to bind iron C. the production of toxins to resist predation D. All of the choices are correct.
You are performing an experiment to assay phosphorylation of a substrate by a protein kinase. Based on the data in the table below, what do these experimental results suggest?
A. GTP is not required for phosphorylation.
B. The substrate can undergo autophosphorylation.
C. The substrate is not required for phosphorylation.
D. The protein kinase is required for phosphorylation.