On a pedigree chart, what symbol would represent a son with a genetic disorder?

A. a clear circle
B. a shaded circle
C. a shaded square
D. a clear square


Answer: C. a shaded square

Biology & Microbiology

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Which of the following would be considered density-dependent factors that could affect population growth?

A. frost B. droughts C. resources D. fire E. severe weather

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Which of the following characteristics is present in all chordates? 

A. gills B. notochord C. vertebrae D. All of the above are correct.

Biology & Microbiology

All seed plants are homosporous

a. True b. False

Biology & Microbiology

Common recessive alleles present in a family can result in a pedigree that looks like ____ inheritance

a. X-linked recessive b. X-linked dominant c. autosomal dominant d. autosomal recessive e. Y-linked

Biology & Microbiology