Can a woman with blood type A have a child with blood type O with a man who is AB?
A) Yes, because of codominance between the IA and IB alleles.
B) No, because a man with type AB blood could not contribute an i allele.
C) Yes, because of epistasis between the I and the H genes.
D) No, because the child's genotype must be ii.
C) Yes, because of epistasis between the I and the H genes.
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Proteins function in modern cells as
A. structural elements. B. hereditary information. C. catalysts. D. both catalysts and structural elements.
Which phrase describes the starting point for the ovarian cycle?
a. a secondary oocyte arrested in meiosis II b. a secondary oocyte arrested in meiosis I c. a primary oocyte arrested in meiosis I d. a primary oocyte arrested in meiosis II
What kind of habitat does a C4-pathway plant favor?
A) Wet and cloudy B) Cool and moist C) Totally aquatic D) Cool and dry E) Hot and dry
The excretory structures of terrestrial arthropods are slender projections from the digestive tract that are attached at the junction of the midgut and hindgut. These are called
A. flame cells. B. Malpighian tubules. C. ocelli. D. kidneys and bladders. E. nephridia.