Cystic fibrosis is one of the most common genetic diseases among individuals of European ancestry, and affects one newborn in approximately how many?
A) 10
B) 100
C) 250
D) 2,500
E) 10,000
D
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Which of the following, if true, would force us to reevaluate the findings that Cann discovered with regard to the human family tree?
A. if human fossils were discovered in Australia that had DNA similar to the DNA found in early Homo sapiens in Africa B. if Neanderthal genomic DNA was found in our genome C. if humans fossils were discovered that had genomic DNA different than their mitochondrial DNA D. if human fossils were discovered in Asia that had DNA completely different from the DNA found in early Homo sapiens in Africa E. None of the answer options is correct.
Archaeoglobales have been isolated from marine hydrothermal vents.
Answer the following statement true (T) or false (F)
Which of the following terms is mismatched with its meaning or characteristics?
A. Diploblastic—ectoderm and mesoderm B. Triploblastic—ectoderm, mesoderm, and endoderm C. Parazoa—lacks symmetry; no tissues D. Eumetazoa—definite symmetry; tissues organized E. Chordate—animal with notochord
What is the original source of new alleles?
a. crossing over b. independent assortment c. fertilization d. mutation e. mitosis