Please read the following scenario to answer the following questions. Widow's peak, a pointed hairline on the forehead, is a genetic trait caused by a dominant allele. It can be traced back through a family's history using pedigree analysis.The pedigree shown here is of three generations of a family. Notice that some individuals (shown in gray) have a widow's peak (W = dominant allele and w = recessive allele). The genotype of Mary is Ww.





a. true

b. false


a. true

Biology & Microbiology

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Which of these ecosystems has the lowest productivity?

A. tropical forest B. temperate forest C. savanna D. open ocean E. lakes

Biology & Microbiology

Stomata are:a

waxy layers that cover leaves. b. openings in the leaf epidermis. c. extensions of bundle sheaths. d. particularly numerous on the upper epidermis. e. guarded by two stipule cells.

Biology & Microbiology

implantation until the 8th week

What will be an ideal response?

Biology & Microbiology

This describes which parasomnia? It may involve movement, occurs during the first 1/3 of the night, and the individual will have little or no memory of the event?

-Somnambulism -Sleep terror -Rem behavior disorder -Both A and c (somnambulism and REM behavior Disorder)

Biology & Microbiology