Which of the following is true concerning
dietary fiber?
a. polysaccharides when mixed with water
form a gel that is insoluble fiber
b. eating foods high in insoluble fiber lowers
the risk of heart disease
c. cellulose is a form of soluble fiber
d. eating insoluble fiber helps prevent
constipation
e. all of these are true concerning dietary fiber
D
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An allele that expresses its phenotype even when heterozygous with a recessive allele is termed
A) recessive. B) recombinant. C) dominant. D) parental. E) independent.
The distribution of strawberry plants in a
strawberry field is a. clumped. b. random. c. uniform. d. constant. e. homogeneous
In a cross between a true-breeding plant bearing smooth, yellow seeds and a true-breeding plant with
wrinkled, green seeds, the offspring were all smooth and yellow. What is the genotype of the F1 plants? A. SSYY B. ssyy C. SsYy D. ssYY E. SSyy
Gene targeting has been used in mice to produce strains that were either homozygous or heterozygous
for __________. a. PKU b. cystic fibrosis c. Huntington's disease d. sickle cell anemia e. Tays Sachs Disease