The stage of meiosis that makes descendant cells haploid is _____
a. prophase I
b. prophase II
c. anaphase I
d. anaphase II
e. metaphase I
c
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In the figure above, which lane shows a very large, linear DNA fragment that was cut by two
enzymes?
a. 1 b. 2 c. 3 d. 4 e. 5
Which of the following is NOT a characteristic
of prions or prion diseases?
a. the protein that becomes a prion is common throughout the body b. they are misfolded proteins c. they form fibers that accumulate in the brain d. they result in tiny holes in the brain e. prion diseases are non-fatal
Differentiate between the following terms: threatened species, endangered species, and extinct species. What will be an ideal response?
Which of the following statements is true?
a. Chromosomes are classified into two categories, the sex chromosomes that determine gender and autosomes that determine non-gender related traits. b. Homologous chromosomes differ in banding patterns, the traits they code for and size. c. While sex chromosomes determine different genders they look the same until they are stained. d. In humans all 46 chromosomes have an identical match called the homologue.