What two major concepts in biology were unified in the middle of the twentieth centu-ry?
a. natural selection and drift
b. discontinuous and continuous variation
c. mutation and migration
d. natural selection and Mendelian genetics
e. population genetics and quantitative genetics
D
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Which of the following four statements is NOT
true? a. The location of the centromere is unique for each chromosome. b. Some spindle fibers become attached to kinetochores. c. The spindle apparatus is composed of protein molecules of tubulin. d. Some microtubules overlap at the spindle equator. e. All of these are NOT true
In a DNA molecule, the amount of adenine equals the amount of ____
a. guanine b. thymine c. cytosine d. uracil e. tyrosine
In order to prevent the onset of hemolytic disease of the newborn, an Rh- woman who is pregnant with an Rh+ child can be given ________ during pregnancy
Fill in the blank(s) with correct word
_______ occurs as a long-thin strand of DNA protein complex, found in a loosely packed formation, while ________ are formed by a tighter packing, via coiling and compact folding of the DNA protein complex are thus visible.
Fill in the blank(s) with the appropriate word(s).