Mendel’s study of genetics differed from studies of
his contemporaries’ because he
a. used only pure-breeding parents.
b. examined several different traits at the same
time.
c. kept careful records and analyzed the data
statistically.
d. worked on plants rather than animals.
e. confirmed the blending theory of inheritance.
Answer: c
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In Drosophila melanogaster there is a sex-linked gene for eye color that is found only on the X
chromosome. The allele for red eye color (Xw+) is dominant over the allele for white eye color (Xw). You examine a vial of 100 flies that are all offspring from a single genetic cross. You see only redeyed females present, but you see both red-eyed and white-eyed males present. The genotypes of the parents were
a. Xw+Xw+; Xw+Y. b. XwXw; Xw+Y. c. Xw+Xw; XwY. d. Xw+Xw; Xw+Y. e. XwXw; XwY.
hemoglobin?
a. It is a protein. b. It contains iron. c. It has the same function in mollusks, annelids, and some crustaceans as it has in humans. d. Clams, like humans, carry hemoglobin in red blood cells. e. It is comparable in function to hemocyanin
The use of ____________________ is banned or restricted in more than 23 countries due to its toxicity. Fill in the blank(s) with the appropriate word(s)
Compare and contrast the homology that occurs in the forelimbs of mammals What will be an ideal response?