Cells become progressively committed to specific patterns of gene activity and developmental fate
through a process known as:
a. morphogenesis.
b. determination.
c. cell differentiation.
d. nonspecific differentiation.
e. growth.
B
Biology & Microbiology
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The lipopolysaccharide (LPS) layer is found ONLY in the cell walls of
A) gram-positive Bacteria. B) gram-negative Bacteria. C) Archaea. D) Eukarya.
Biology & Microbiology
When Mendel crossed two plants that were heterozygous for a single trait, what was the genotypic ratio of their offspring?
A. 1:2:1 B. 9:3:3:1 C. 3:1 D. 1:1 E. Varied depending on the trait
Biology & Microbiology
__________ are proteins, Y-shaped antigen receptors made only by __________ cells. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
A portion of a DNA molecule wound around a spool of
histone protein is called a a. centromere. b. nucleosome. c. spindle. d. furrow. e. cell cycle.
Biology & Microbiology