New York State Chemistry RegentsNew York State Earth Science Regents

 
Living Environment Regents August 2010 Question 13 PDF Print E-mail
Friday, 27 May 2011 12:38
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Correct answer: (3) development influenced by the environment

Phenotype, the physical and physiological traits of an organism, is influenced by the genotype (genetic makeup of the organism) and the environment. In given situation, the growth of the salamander was influenced by the surrounding, which is not favorable for its development.

Incorrect answers:

(1) the production of gametes

Gametes are haploid sex cells (egg or sperm) that unite during fertilization. Gametogenesis or the production of gametes is not exemplified in the given situation.

(2) faulty genes found in aquatic organisms

The genetic makeup of organisms could be changed through mutation. However, mutation is not exhibited in the given situation. The genes were not properly expressed due to the unfavorable condition of the environment.

(4) the production of new organism by environmental engineering

There is no such thing as environmental engineering where a new organism can be developed by the alteration in the environment. An organism can develop better traits by transferring the gene of interest from one organism to another through genetic engineering technology.
 

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