Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consistent with which arrangement of alleles?
What will be an ideal response?
In the AaBb parent, the dominant alleles are on one homolog and the recessive alleles are on the other.
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The most common vector-borne bacterial disease in the United States is:
a. Lyme disease b. West Nile virus c. tuberculosis d. cholera e. MRSA
During which response to the antigen do we display a latent period of no secretory antibody synthesis?
A. Primary B. Tertiary C. Quaternary D. Secondary
A population that is divided into several local populations among which individuals occasionally
disperse (emigrate and immigrate) is known as a: a. metapopulation. b. life table. c. survivorship curve. d. source population. e. sink population.
The gene for Tay-Sachs disease codes for a nonfunctional form of the enzyme hexosaminidase A (or Hex A). It has been found that a person with only one-third the maximum amount of Hex A can function absolutely normally. Please characterize the heredity of
Tay-Sachs disease. A) multiple allelic B) codominant C) dominant D) recessive