_______ occurs as a long-thin strand of DNA protein complex, found in a loosely packed formation, while ________ are formed by a tighter packing, via coiling and compact folding of the DNA protein complex are thus visible.
Fill in the blank(s) with the appropriate word(s).
Chromatin; chromosomes
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Coralline red algae have an outer covering made of:
a. cellulose. b. calcium carbonate. c. silica. d. protein. e. starch
Endotoxins must be eliminated from biomanufactured products because they ________
A) render the product inactive B) interfere with the product's absorption C) cause pain, fever, and more severe symptoms in humans D) are from unknown origin E) cause problems for the cell line used to produce the product
The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of the cell.
Fill in the blank(s) with the appropriate word(s).
Antigens on red blood cells are hereditary traits that allow blood to be typed in different ways. One system is based on a gene with two alleles, M and N. If the frequency of the M allele in a population is 0.4, then according to the Hardy-Weinberg rule, the expected frequency of the heterozygous MN genotype is ________.
A. 0.36 B. 0.16 C. 0.6 D. 0.48 E. 0.24