About ____ percent of children with Down syndrome are severely intellectually disabled
a. five
b. ten
c. twenty-five
d. thirty
e. forty
b
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What is the correct order of reproduction in members of phylum Zygomycota?a. Hyphae of opposite mating strains touch each other.b. Gametangia merge, nuclei pair and fuse.c. Spores are released from the sporangium.d. Gametangia form at the end of the hyphae.e. A thick wall develops around the zygospore.
A. a - b - e - c - d B. a - b - c - d - e C. e - d- a - b - c D. a - d - b - e - c
What key advantage do emerging technologies, such as MALDI-TOF and next generation sequencing, have over conventional hybridization and amplification techniques?
a. They do not require selection of suspected pathogens prior to testing. b. They do not require expensive instrumen-tation or skilled technicians. c. They eliminate sample preparation steps, such as nucleic acid purification, prior to testing. d. They are readily available in most clinical laboratories. e. All of the above.
The largest grouping in biological classification is the kingdom
1.True 2.False
A polylinker region in a cloning plasmid is characterized by
A) multiple methyl groups. B) multiple restriction cut sites. C) multiple reporter genes. D) multiple expression vectors. E) multiple cloning targets.