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NYS Regents

NEW YORK STATE REGENTS EXAMS
LIVING ENVIRONMENT - AUGUST 2001

6 The diagram below represents a process that occurs within a cell in the
human pancreas.
 

This process is known as

(1) digestion by enzymes
(2) protein synthesis
(3) energy production
(4) replication of DNA

7 When a personís teeth are being x rayed, other body parts of this person are covered with a protective lead blanket to prevent

(1) loss of hair
(2) increase in cell size
(3) changes in DNA molecules
(4) changes in glucose structure

8 The diagrams below represent portions of the genes that code for wing structure in two organisms of the same species. Gene 1 was taken from the cells of a female  with normal wings, and gene 2 was taken from the cells of a female with abnormal wings.

The abnormal wing structure was most likely due to

(1) an insertion         (3) a deletion
(2) a substitution      (4) normal replication

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