Which experiment would best determine which genes are expressed in a Drosophila embryo?
A) analysis of a Drosophila genomic DNA library
B) analysis of a cDNA library from adult male Drosophila
C) analysis of a cDNA library from Drosophila embryos
D) identifying all the open reading frames in the Drosophila genome
E) identifying all the promoters in the Drosophila genome
C) analysis of a cDNA library from Drosophila embryos
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An autotroph is likely to convert CO2 into reduced organic carbon in order to produce precursor metabolites.
Answer the following statement true (T) or false (F)
The four basic animal tissues are:a
connective, digestive, nervous, and respiratory. b. blood, bone, connective, and epithelial. c. epithelial, connective, muscle, and nervous. d. digestive, nervous, reproductive, and respiratory. e. circulatory, excretory, respiratory, and sensory.
Biofilm bacteria are beneficial in their
A) accumulation and attachment to damaged tissues in the human body. B) involvement in nutrient exchange between microbes and plant roots. C) invasive penetration of cooling towers and storage tanks. D) accumulation on hard surfaces such as teeth.
According to the accompanying figure, which of the following are large enough to see in the light microscope?
A) atoms
B) proteins
C) viruses
D) mitochondria