What is the component of heme within hemoglobin whose absence can lead to anemia?
a. iron
b. iodine
c. calcium
d. zinc
e. magnesium
a
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Which individual studied variations in the traits of pea plants and developed some of the basic principles of genetics?
a. Franklin b. Darwin c. Watson d. Crick e. Mendel
DNA gyrase
A. closes gaps between DNA bases. B. removes supercoiling ahead of origin. C. synthesizes RNA primers. D. copies DNA bases.
In a dihybrid cross exhibiting complete genetic linkage, what would you expect?
A) one parental allele combination occurring more frequently than another B) two equally frequent gametes containing only parental allele combinations C) only recombinant gametes D) one parental allele combination occurring more frequently than another and no recombinant gametes E) two equally frequent gametes containing only parental allele combinations and no recombinant gametes
Govingee, 35 years old, has recently become lethargic, and his face feels very cool but puffy to the touch. When you take his pulse, you note that it seems abnormally low. What condition might Govingee have?
A) excess calcitonin B) accumulating aldosterone C) low thyroid hormone D) low growth hormone