In the attempt to identify the remains thought to be that of Czar Nicholas Romanov II and his family, _____ was used
to determine that the skeletons were not only related members of a family, but were also related to living Romanov
relatives.
a. Y chromosome STR alleles
b. blood typing
c. facial reconstruction
d. maternally inherited mitochondrial DNA
e. paternally inherited mitochondrial DNA
d
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The implanted blastula prevents ________ by secreting the hormone ________
a. menstruation, HCG b. gastrulation, HCG c. cleavage, progesterone d. menstruation, progesterone e. menstruation, estrogen
Four of the five answers listed below are
events occurring during mitosis. Select the EXCEPTION.
a. crossing over b. division of centromeres c. chromosomes line up at the cellular equator d. attachment of spindle microtubules to centromeres e. migration of chromosomes to opposite ends of the cell
Epigenetic modifications affect the nucleotide sequence of the DNA
a. True b. False
Which of the following is also known as the voice box?
a) bronchioles b) larynx c) trachea d) epiglottis