In garden peas, one pair of alleles controls the height of the plant, and a second pair of alleles controls

flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P)
is dominant to the allele for white (p). A tall plant with purple flowers crossed with a tall plant with
white flowers produces 3/8 tall purple, 1/8 tall white, 3/8 dwarf purple, and 1/8 dwarf white. What is
the genotype of the parents? What will be an ideal response?


Dd Pp ? Dd pp

Biology & Microbiology

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The ____ phylum has only about 70 living species of vascular, seed-bearing plants in three genera, including

Welwitschia and Ephedra. Some species have a two-step fertilization process, similar to fertilization in angiosperms.

a. Cycadophyta b. Anthophyta c. Gnetophyta d. Coniferophyta e. Ginkgophyta

Biology & Microbiology

The collection of genes and the corresponding alleles is a population's

A. recessive traits. B. genotype. C. gene pool. D. phenotype. E. dominant traits.

Biology & Microbiology

Riverine wetlands usually have a longer hydroperiod than basin wetlands

Indicate whether the statement is true or false

Biology & Microbiology

Which is incorrect about rabies?

A) Wild populations of bats, skunks, raccoons, cats, and canines are primary reservoirs. B) It is a zoonotic disease. C) Transmission can involve bites, scratches, and inhalation. D) The average incubation in humans is one week. E) Symptoms include anxiety, agitation, muscle spasms, convulsions, and paralysis.

Biology & Microbiology