The double helix model of DNA structure was proposed by
A. Griffith.
B. Franklin.
C. Watson and Crick.
D. Avery.
E. Chargaff.
Answer: C
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Dialysis is a treatment used for patients who no longer have functioning kidneys. The dialysis machine uses ultrafiltration with a semi-permeable membrane to perform the functions of the kidneys. After dialysis, patients sometimes experience periods of hypoglycemia (low blood sugar). Which of the following is an explanation for this post-treatment condition?
a. Dialysis takes a long time and patients need a break to eat. b. Without kidneys, their bodies cannot retain sugar in their blood. c. During dialysis, there is loss of glucose due to diffusion. d. Dialysis causes their insulin levels to rise.
During fermentation, ________ is recycled by transferring its electrons to a molecule other than oxygen.
Fill in the blank(s) with the appropriate word(s).
A person with an XO genotype is classified as having
A) Down syndrome. B) cri du chat syndrome. C) Turner syndrome. D) Klinefelter syndrome. E) a poly-X state.
Dr. Smith's parents have normal hearing. However, Dr. Smith has an inherited form of deafness. Deafness is a recessive trait that is associated with the abnormal allele d. The normal allele at this locus, associated with normal hearing, is D. Dr. Smith's
parents could have which of the following genotypes? A) DD and dd B) dd and dd C) Dd and Dd D) Dd and DD