The symplast transports all of the following except
A) sugars.
B) mRNA.
C) DNA.
D) proteins.
E) viruses.
Ans: C) DNA.
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In the spiral staircase analogy of DNA structure, each railing represents a _______________________
A. sugar-phosphate backbone, and each step represents a pair of nitrogenous bases B. sugar-phosphate backbone, and each step represents a nitrogenous base C. nitrogenous base, and the steps represent the sugar-phosphate backbone of the DNA molecule
Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material on to future generations. This is referred to as:
a. evolutionary success b. genetic strength c. fitness d. inheritance strength e. survival
"Brush border" refers to ________ found on the surface of the epithelial cells of the small intestine
Fill in the blank(s) with correct word
A situation in which the heterozygote offspring of two homozygotes show an phenotype intermediate between those of the parents is called:
a) a single-gene trait. b) heterozygote superiority. c) a test-cross. d) incomplete dominance. e) multiple allelism.