Susie is not color-blind, but she transmitted a color-blindness gene to her son. She is said to be a _______ of the color blindness gene.
Fill in the blank(s) with the appropriate word(s).
carrier
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When copies of a gene are found at different locations on the same or different chromosomes, the phenomenon is
called _____.
a. dispersed duplication b. dispersed localization c. duplicate localization d. gene dispersion e. random dispersion
Roughly a quarter of all known species are currently threatened with extinction. What is the primary source of this threat?
What will be an ideal response?
The primary purpose of splitting the water in the light-dependent reactions of photosynthesis is to ____
a. release oxygen for aerobic respiration b. generate ATP c. generate NADH d. actively transfer hydrogen ions across the thylakoid membrane e. release electrons for electron transport phosphorylation
Which type of skeleton is found in a starfish?
a. cartilaginous
b. exoskeleton c. hydrostatic d. chitinous e. endoskeletal