Cross together two double heterozygous parents for plant height and flower color (genotypes: SsWw for both parents; S = tall, s = short, W = blue, and w = white.) What is the probability that a randomly selected offspring will be tall and have blue flowers?
a. 1/16
b. 3/16
c. 9/16
d. 3/4
Answer: c. 9/16
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difficult for your body to repair?
a. broken leg b. a deep cut on your foot c. a twisted ankle d. a torn biceps muscle e. an ulcer
The process by which a parent cell or organism produces a new generation of cells or whole organism is ____
a. life cycle b. cell division c. coitus d. reproduction e. mutation
Scanning electron microscopy (SEM) ________.
a. can be used to view biomolecules at the atomic level b. requires no special treatment of the specimen c. provides a three-dimensional image of a cell's surface d. is used to view internal cellular structure
Animal viruses typically enter a cell by
a. membrane fusion. b. endocytosis. c. membrane fusion or endocytosis. d. direct penetration.