All fungi are heterotrophic and can break their substrates down by secreting enzymes.
Answer the following statement true (T) or false (F)
True
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T4 genes are transcribed by host RNA polymerase, yet the transcription of T4 genes is carefully controlled so that groups of T4 genes are transcribed at specific times after infection. How is this accomplished?
A) Early T4 genes encode for proteolytic enzymes that destroy the host RNA polymerase. Subsequently a viral polymerase is created that transcribes the middle and late genes in the correct order. B) Early and middle T4 genes encode for proteins that modify the activity of sigma factors and host RNA polymerase to regulate the expression of T4 genes. C) Each group of T4 genes has a different promoter that indicates that order in which they should be transcribed in based on the affinity of the promoter for the host RNA polymerase. D) Rolling circle replication of the viral genome ensures that the genes are available for transcription in the correct order.
Bioluminescence is:
A. the production and emission of light by organisms B. the capture of moonlight for nocturnal photosynthesis C. the absorption of light by pigments for transfer to chlorophyll a D. the ability to detect and move away from sources of light E. the ability to detect and move toward sources of light
The gas exchange surfaces in a mammalian lung are organized into structures that look like clusters of hollow grapes. The hollow, grape-like structures are the________________.
A. alveoli B. spiracles C. papulae D. lamellae E. bronchi
Define the terms triploidy and autosomal trisomy and describe characteristics and consequences of each genetic
disorder.What will be an ideal response?