The cell-cycle phase that varies most in duration in various eukaryotic adult cell types is
A) M.
B) G1.
C) S.
D) G2.
E) G0.
Answer: B
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A viral lytic cycle is characterized by:
a. rapid infection and emergence. b. rapid infection, replication of nucleic acids and proteins, assembly of virions and release by rupture. c. a virus remaining in the host cell then being released. d. a viral nucleic acid being inserted into the host genome and possibly residing through multiple cell divisions prior to lytic.
What is the most compelling reason why "protists" are not considered to be a taxonomic group?
A. The organisms often included in this group are very diverse and don't form a cohesive taxon. B. The group includes both prokaryotic and eukaryotic cell types. C. They are too small to be included among the eukaryotes. D. They are not cellular life forms.
Which of the following is a plant cell type that
is commonly found in and gives support to vascular tissues?
a. sclerids b. fibers c. stomata d. parenchyma e. collenchyma
Pattern of inheritance in which a trait is controlled by several allelic pairs.
What will be an ideal response?