Refer to the accompanying figure. Which cell type or types are primarily responsible for the release of histamine in
injured tissues and in allergic responses?
a. A only
b. B only
c. C only
d. D only
e. A and cell type D
c
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In the Igf-2 allele, which chromosome is imprinted? Which is expressed?
A. Paternal, paternal B. Paternal, maternal C. Maternal, paternal D. Maternal, maternal
In order to transfer all the genes to an F- cell we would need how long?
a. 1 minute b. 20 minutes c. 3 minutes d. 14 minutes e. 5 minutes
Which tissue will conduct sugars and organic molecules throughout the plant?
a. Phloem b. Dermal c. Xylem d. Collenchymas e. Sclerenchyma
All of the following pertain to virus envelopes except they
A. are gained as a virus leaves the host cell membrane. B. are located between the capsid and nucleic acid. C. contain special virus proteins. D. help the virus particle attach to host cells. E. are found primarily on animal viruses.