Which term best describes a trait that is shared by all members of a clade and only by members of that clade?
a) molecular clocks
b) dichotomous structures
c) derived characters
d) nodes
Ans: c) derived characters
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You isolate a piece of DNA from a microorganism you cultivated from your teeth. The piece of DNA is 94 kbp is size and is circular
You sequence it and discover that it contains genes for capsule formation, pili, and antibiotic resistance, as well as an origin of replication. What is this piece of DNA and how is it related to the other genetic elements found in prokaryotic cells? What will be an ideal response?
What cell type secretes antibodies?
A) natural killer cells B) helper T cells C) macrophages D) mast cells E) plasma cells
A primary transcript in the nucleus of a eukaryotic cell is _____ the functional mRNA, while a primary transcript in a prokaryotic cell is _____ the functional mRNA
A) the same size as; smaller than B) larger than; the same size as C) larger than; smaller than D) the same size as; larger than
The Calvin cycle makes direct use of ________ to make ________
A) light energy and CO2... sugar B) CO2, ATP, and NADPH... sugar and O2 C) light energy, CO2, and water... sugar and O2 D) CO2, ATP, and NADPH... sugar