The stage of viral replication in which the virus binds a cell surface receptor is
A. release.
B. attachment.
C. assembly.
D. penetration.
E. synthesis.
B. attachment.
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The epigenetic state of a cell is called its ____________________. Fill in the blank(s) with the appropriate word(s)
During cytokinesis, a critical step in septation is the assembly of the ________.
A. replisome B. cytoskeletal spiral C. spindle body D. Z ring
What advantage do gymnosperms have over ferns?
A. Gymnosperms produce pollen and do not require water to reproduce. B. Gymnosperms have alternation of generations. C. Gymnosperms have a vascular system, which allows them to grow taller. D. Gymnosperms can grow larger gametophytes. E. Gymnosperms can produce flowers and fruits to aid in seed dispersal.
Which traits would pedigree analysis be least effective in tracking?
1.X-linked dominant disorders
2.autosomal recessive disorders
3.sex-limited genes
4.multifactorial traits