In what structure does inhaled air complete its path to the lungs?
A) Bronchi
B) Bronchioles
C) Glottis
D) Alveoli
E) Larynx
F) Pharynx
Answer: D) Alveoli
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The fact that all seven of the pea plant traits studied by Mendel obeyed the principle of independent assortment most probably indicates which of the following?
A) None of the traits obeyed the law of segregation. B) The diploid number of chromosomes in the pea plants was 7. C) All of the genes controlling the traits were located on the same chromosome. D) All of the genes controlling the traits behaved as if they were on different chromosomes. E) The formation of gametes in plants occurs by mitosis only.
The Fox2P gene is thought to be related to language in humans. At prophase I, how many copies of the Fox2P gene are present in a cell? Keep in mind that humans are diploid
A. two copies, one on each homologous chromosome B. four copies, one on each sister chromatid in a pair of homologous chromosomes C. eight copies, one on each sister chromatid in a pair of homologous chromosomes D. eight copies, one on each strand of each chromatid per homologous pair
Which of the following characteristics do all animals share?
A. They are multicellular prokaryotes. B. They are single-celled eukaryotes. C. They are multicellular eukaryotes. D. They are single-celled prokaryotes.
The explanation for the differences between a human
liver cell and a cell from the skin is the a. maternal and paternal origins of the genes. b. gene content of the two cells. c. expression of the genes in the two cells. d. fact that they originated from different primary tissue layers. e. different functions of the cells.