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NYS Regents

NEW YORK STATE REGENTS EXAMS
LIVING ENVIRONMENT - JANUARY 2003

6 A sudden change in the DNA of a chromosome can usually be passed on to future generations if the change occurs in a

(1) skin cell       (3) sex cell
(2) liver cell       (4) brain cell

7 A change in the order of DNA bases that code for a respiratory protein will most likely cause

(1) the production of a starch that has a similar function
(2) the digestion of the altered gene by enzymes
(3) a change in the sequence of amino acids determined by the gene
(4) the release of antibodies by certain cells to correct the error

8 Many vaccinations stimulate the immune system by exposing it to

(1) antibodies     (3) mutated genes
(2) enzymes       (4) weakened microbes

9 The data in the graph below show evidence of disease in the human body.


A disruption in dynamic equilibrium is indicated by the temperature change between points

(1) A and B      (3) C and D
(2) B and C       (4) E and F

10 The diagram below represents events involved as energy is ultimately released from food.

Which row in the table below best represents the chain of Xs and letters A and B in the diagram?

 

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