Name: Victor
Correaso
431f5509 - Page 2
DNA & Protein Synthesis Review
1) Which one of the following phrases best describes a gene?
A) a segment of a DNA molecule found only in the body cells of an organism
B) a segment of a DNA molecule that contains the instructions for producing all the characteristics of an
organism
C) a segment of a DNA molecule found only in the gametes of an organism
D) a segment of a DNA molecule that contains the instructions for producing a trait in an organism
2 The processes of deletion, insertion, and substitution can alter genes in a skin cell. The altered genes will

D) a segment of a DNA molecule that contains the instructions for producing a trait in an organism

Explanation: A gene is a DNA segment which contains the information needed in producing a protein or an RNA molecule. The protein coded for by a gene is responsible for controlling a particular trait in an organism. Usually one gene codes for one protein and one protein controls one trait in an organism. A gene is a unit of hereditary.

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answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation: