It is now possible to analyze the genetics of an in vitro fertilized embryo by
a. fetoscopy.
b. amniocentesis.
c. chorionic villi sampling.
d. pre-implantation diagnosis.
e. post-implantation diagnosis.
ANSWER: d
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Where in the cell will transcription take place?
a. Mitochondria b. Nucleus c. Rough endoplasmic reticulum d. Smooth endoplasmic reticulum e. Cytoplasm
Fossil evidence indicates that prokaryotic cells first existed on the Earth
A) 350 years ago. B) 3500 years ago. C) 35000 years ago. D) 3.5 billion years ago. E) 3.5 × 1012 years ago.
Painful, blister-like lesions that progressively become filled with pus suggest infection with a (herpesvirus/poxvirus/papillomavirus).
Fill in the blank(s) with the appropriate word(s).
If media A is pH 9 and media B is pH 7, then the media at pH 9 is _________________ times more alkaline than the pH 7 media.
A) 100 B) 1000 C) 10 D) 20 E) 2