What term describes the implantation of the blastocyst in a place other than the uterus?
a. menstruation
b. gastrulation
c. ectopic pregnancy
d. endometrial pregnancy
e. conjoined pregnancy
ANSWER: c
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What function does a competent cell have that makes it useful in cloning experiments?
A. Competent cells resist transfection by a viral vector. B. Competent cells repair DNA strands without the aid of DNA ligase. C. Competent cells utilize transposons as a vector. D. Competent cells take up DNA from the external environment
Which of the following is the correct order of genes A, B, and C?
You analyze 300 offspring and see the following: 30 recombinants between gene A and B 120 recombinants between genes B and C 90 recombinants between genes A and C A. Gene order is BAC B. Gene order is ABC C. Gene order is BCA D. Gene order is ABC or BAC E. Gene order can be ABC, BAC, or BCA.
The Greek root words for "arrange" and "law" underlie the biological term
A. binomial. B. taxonomy. C. systematics. D. nomenclature. E. systema naturae.
All of the populations of different species that occupy and are adapted to a given area are known as ____.
A. the biosphere B. a community C. an ecosystem D. a niche E. the habitat