Four of the five cells listed below are haploid. Select
the exception.
a. zygote
b. spore
c. egg
d. sperm
e. gametophyte
Answer: a
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In a double helix, a ________ always pairs with a ________.
a. purine; pyrimidine b. carbon; phosphate c. purine; phosphate d. pyrimidine; carbon
The ________ method was used by the Celera Genomics Corporation to sequence the human genome
A) FISH B) whole-genome shotgun C) clone contig D) radiation hybrid E) pedigree analysis
The antigen-binding region of an antibody is formed by the
A) constant region composed of a heavy chain and a light chain. B) variable region composed of two heavy chains. C) variable region composed of two light chains. D) variable region composed of a heavy chain and a light chain. E) constant region composed of two light chains.
When scientists work with small areas of DNA, this process allows them to isolate specific stretches of DNA for other applications.
A. transformation B. electrophoresis C. DNA fingerprinting D. restriction enzyme analysis