Sperms and eggs are produced by ..... Division .
A. Binary fission
B . Meiosis
C. Budding
D. Mitosis
E. Asexual Division
Ans: B . Meiosis
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Of all of the ions associated with generating the resting membrane potential, the permeability of the membrane to ________ is the most important.
A) sodium ions B) potassium ions C) chloride ions D) all of the above E) none of the above
During telophase, ________
A) the events of prophase are reversed B) chromosomes line up in the middle of the cell C) sister chromatids become separate chromosomes D) the nuclear envelope breaks up
In a multicellular organism, nerve cells are different from muscle cells because
a. each cell type has a unique set of transcription factors and repressors, so it expresses a specific set of genes b. each type of cell within a multicellular organism contains a different set of genes c. random events within each cell regulate the expression of genes and result in different genes being expressed in different cells d. cells gain and lose different genes during embryonic development, so each cell in an adult only has some genes from the original set
A plant that has the mutant form of the WEREWOLF gene (wer) would be identifiable by
A. the lack of microscopic hairs along the epidermis of the root. B. the extra thick layer of mesophyll cells in the leaf. C. the abundance of microscopic hairs on the root. D. the excessive number of vascular bundles in stem. E. the lack of fibers in the outer portions of the stem.