Which statement does not represent a way in which meiosis and mitosis differ?
A) Mitosis can occur in either haploid or diploid cells, but meiosis only occurs in diploid cells.
B) The daughter cells of a mitotic division are identical, but those of a meiotic division are not.
C) Chromosome replication occurs before mitotic division but not before meiotic division.
D) In anaphase of mitosis, sister chromatids are separated, but in anaphase I of meiosis, homologous chromosomes
are separated.
E) In mitosis, each cell divides only once, whereas meiosis consists of two successive divisions.
C) Chromosome replication occurs before mitotic division but not before meiotic division.
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Which of the following is TRUE of the
immediate impact of Mendel’s publication in 1866 of the basic laws of inheritance?
a. it gave Darwin the insight he needed into the mechanism of variation b. it started a genetic revolution c. it made Mendel one of the most famous scientists of his day d. it did more than of these things (a - c) e. it had no immediate impact
The major excretory organ(s) of the human urinary system is/are the
A. gallbladder. B. pancreas. C. liver. D. adrenal gland. E. kidneys.
Which hormone is essential to our ability to maintain our fluid levels?
A) cortisol B) aldosterone C) thyroxine D) insulin
Several epidemic microbial diseases of earlier centuries incurred high death rates because they resulted in severe dehydration due to vomiting and diarrhea. Today they are usually not fatal because we have developed which of the following?
A) antiviral medications that are efficient and work well with most viruses B) intravenous feeding techniques C) medications to slow blood loss D) hydrating drinks with high concentrations of salts and glucose