Connective tissues are part of the primordial embryo's
A) mesoderm.
B) endoderm.
C) ectoderm.
D) epidermis.
A) mesoderm.
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The absence of a band when the linker is present at about -25 indicates that
A. This region is critical for the in vitro transcription reaction B. this region is not critical for the in vitro transcription reaction C. it is not possible to determine if this region is critical for in vitro transcription D. the linker interfered with transcription Bloom's Level:
Which lists the stem cells from the least to the highest degree of flexibility?
A) embryonic stem cells < adult stem cells < zygote B) embryonic stem cells < zygote < adult stem cells C) adult stem cells < zygote < embryonic stem cells D) adult stem cells < embryonic stem cells < zygote
People who wash their hands frequently during cold season typically have fewer colds than those who do not. This observation suggests cold viruses can be transmitted by
A) fomites. B) mechanical vectors. C) biologicalvectors. transmission. D) direct contact. E) both direct contact and fomites.
Select all examples of cells that are prokaryotic:
a. Fungal cell b. Animal cell c. Archaeal cell d. Bacterial cell e. Plant Cell