The very first DNA sequencing technology called the Sanger method relies on
A) nanopore technology that separates DNA molecules based on charge differences.
B) the incorporation of dideoxynucleotides that terminate chain extension during DNA synthesis.
C) nuclear magnetic resonance (NMR) analysis.
D) the release of protons whenever a new nucleotide is added to a growing strand of DNA.
Answer: B
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When I say a flower is "purple," what have I described?
A. Its genotype B. Its karyotype C. Its haplotype D. Its phenotype
The movement of genetic material between organisms by any mechanism other than descent is known as ____
a. lateral gene substitution b. polyphyly c. hybridization
d. cloning e. horizontal gene transfer
Color blindness is an X-linked recessive gene. Two normal-vision parents produce a color-blind child
(a) Is this child male or female? (b) What are the genotypes of the parents? (c) What are the chances that their next child will be a color-blind daughter? What will be an ideal response?
Which of the following statements about deserts and the organisms that live there is true?
A) Air temperatures in cold deserts, such as those west of the Rocky Mountains, may never fall below 30 degrees C. B) Growth and reproduction occur year-round in deserts. C) Deserts typically occur at the equator. D) Desert plants typically produce very few seeds. E) Many desert animals are nocturnal.