Diploid cells of the fruit fly Drosophila have ten chromosomes. How many chromosomes does a Drosophila gamete have?
a. 1
b. 2
c. 5
d. 10
e. 20
Ans: c. 5
Biology & Microbiology
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From his experiments, Mendel concluded that each individual carries two factors, or ____, that govern the inheritance of each trait. Different versions of each factor are known as ____
a. alleles; gene markers b. genes; loci c. alleles; genes d. genes; alleles e. gene markers; genes
Biology & Microbiology
Which subphylum includes shrimp, lobsters, and crabs?
a. Trilobita b. Crustacea c. Hexapoda d. Chelicerata
Biology & Microbiology
Antibodies are
A) derived from vitamins. B) carbohydrate molecules. C) amino acid molecules. D) produced by T cells. E) protein molecules.
Biology & Microbiology
What hormone produced in the kidneys stimulates production of red blood cells?
A. erythropoietin B. lipase C. adrenaline D. prolactin E. carbonic anhydrase
Biology & Microbiology