Polygenic inheritance may result in a continuum of phenotypes because

A. the genes that are involved can be considered to be co-dominant
B. the alleles for each gene are either completely dominant or recessive.
C. there is a low environmental effect.
D. there is a high environmental effect.


A

Biology & Microbiology

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Seasonal variation in solar radiation, temperature, and day length is due to the

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Terrestrial vertebrate richness is most strongly tied to

A) primary productivity. B) potential evapotranspiration. C) sea surface temperatures. D) altitude.

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Which one of the following RNA types is most abundant in mammalian cells?

A. mRNA B. tRNA C. miRNA D. rRNA E. snRNA

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Producers can be photosynthetic or chemosynthetic

Indicate whether the statement is true or false

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