Which of the following is used by some animals in finding their way (navigation)?
A. Sense of smell.
B. Position of the sun.
C. Detection of electromagnetism.
D. All of these answers are true, since each is used by some animal.
D. All of these answers are true, since each is used by some animal.
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"Sticky ends" are:a
the single-stranded ends of a DNA segment created by some restriction enzymes. b. a problem in recombinant DNA technology because they form loops of single-stranded DNA. c. double-stranded ends of a DNA segment created by some restriction enzymes. d. sites of the origin of replication in prokaryotes.
e. sugar molecules that are bound to the ends of a DNA fragment.Seven (orders/families/classes) represent the highest level of taxonomic rank used in classifying viruses
What will be an ideal response?
A genomic library is a collection of:
a. plasmid fragments that are spliced into genomic DNA. b. genomic DNA fragments that are spliced into plasmids. c. intron fragments that are spliced into plasmids. d. exon fragments that are spliced into bacterial cells. e. gene fragments that are spliced into main bacterial chromosome.
According to kin selection, a man should die to save the life of
A. one full brother. B. two half brothers. C. four grandparents. D. one parent. E. nine cousins.