Molecular barcodes are:
A. barcodes stamped on vegetables in the supermarket to indicate freshness
B. DNA sequences used to identify and catalog biodiversity
C. radioactively labeled genes used to detect horizontal transfer of genes
D. genetic inversions used to detect crossovers
E. All of the choices provided are incorrect.
B. DNA sequences used to identify and catalog biodiversity
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DNA:DNA hybridization is a sensitive method for revealing subtle genetic differences because it measures the degree of sequence similarity between two genomes
Indicate whether the statement is true or false.
The type of digestion performed by digestive enzymes is __________ digestion.
Fill in the blank(s) with the appropriate word(s)
Accommodation involves the ability to
a. change the sensitivity of the rods and cones by means of neurotransmitters. b. change the curvature of the cornea. c. change the width of the lens by contracting or relaxing certain muscles. d. adapt to large changes in light intensity. e. see variations in color.
A son is born with Kleinfelter's syndrome and hemophilia. His father was normal and his mother was a carrier for the recessive X-linked blood clotting disorder. What occurred in meiosis to produce this genetic outcome?
A) nondisjunction in meiosis I of the mother B) nondisjunction in meiosis I of the father C) nondisjunction in meiosis II of the father D) nondisjunction in either meiosis I or meiosis II of the mother E) nondisjunction in meiosis II of the mother