A cross was made between homozygous wild-type female Drosophila and yellow-bodied male Drosophila. All of the resulting offspring were phenotypically wild type. Offspring of the F2 generation had the following phenotypes:
Sex Phenotype Number
male wild 96
male yellow 99
female wild 197
Based on this information, how is the yellow allele inherited?
A) dominant, autosomal
B) sex-influenced inheritance
C) recessive, autosomal
D) recessive, X linked
E) dominant, X linked
Answer: D
You might also like to view...
Examine Figure 48.1 in your text illustrating human population growth. What pattern of growth are we currently exhibiting?
A. exponential growth B. logistic growth C. intrinsic growth D. geometric growth E. None of the above.
________ are proteins that promote depolymerization of extant microtubules at the ends.
Fill in the blank(s) with the appropriate word(s).
A close physical relationship between two different species that may or may not be beneficial is called ________.
Fill in the blank(s) with the appropriate word(s).
In the experiment above, guppy color patterns (spots) were measured in populations exposed to increasing amounts of predation. From this you could conclude that ________.
A. evolutionary changes take millions of years to appear B. brightly colored guppies are more likely to reproduce in the presence of predators C. predators are more likely to catch and eat brightly colored guppies D. predators do not affect the color patterns of guppies E. predators are less likely to catch and eat brightly colored guppies