Fossils found in the lowest geological strata are
generally the most
a. advanced.
b. complex.
c. primitive.
d. widespread.
e. specialized.
Answer: c
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When homologous chromosomes are aligned with each other and arranged as pairs in order of decreasing size, the resulting portrait is referred to as a(n) ____
Fill in the blank with the appropriate word.
Bacteria may become antibiotic resistant due to
A. drug-inactivating enzymes. B. alteration in the target molecule. C. decreased uptake of the drug. D. increased elimination of the drug. E. All of the choices are correct.
What mineral compound allows bones to resist compression and support body weight?
a. collagen
b. fibronectin c. hydroxyapatite d. chondroitin sulfate e. osteoclast
Now that we know the entire gene sequence of humans, what is the next step for scientists?
1.Determine the function for all the genes. 2.Determine the mutations in the genome that cause disease. 3.Create methods to eliminate bad or disease-causing genes. 4.Determine the DNA fingerprints of humans and chimps to help in the treatment of disease.