The structure of a cell that contains the genetic information is called a ___________
A. nucleotide
B. genetic code
C. chromosome
D. nucleic acids
E. None of the answers are correct
C
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Sodium has 11 electrons arranged in three energy levels. In order to become stable, sodium forms an ion with:
A. no charge. B. -1 charge. C. +8 charge. D. +1 charge. E. -8 charge.
The idea that femaleness is simply what happens when an embryo does not develop as a male is no longer supported by evidence because of the discovery of
A) the SRY gene in females. B) genes whose expression is necessary for female structures to develop. C) gene that suppress all of the genes on a female's Y chromosome. D) hormones that suppress expression of SRY genes in females.
The term that refers to the presence of flagella all over the cell surface is ________.
A. atrichous B. monotrichous C. lophotrichous D. peritrichous E. amphitrichous
Water moves up a plant via
a. capillaries. b. phloem. c. xylem. d. stomates. e. panicles.