In zygomycetes such as Rhizopus, the zygospore is haploid
____________________ Indicate whether the statement is true or false.
False - diploid
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Rice plants may be tolerant or intolerant to flooding. A true-breeding tolerant plant was crossed with a true-breeding
intolerant plant, and approximately 75% of the F1 generation was tolerant to flooding. What does this most likely suggest about the flood-tolerant and flood-intolerant alleles?
a. Multiple alleles control flood-tolerance. b. The alleles for flood-tolerance and flood-intolerance are codominant. c. The allele for flood-tolerance is incompletely dominant. d. The allele for flood-intolerance is dominant, while the allele for flood-tolerance is recessive. e. The allele for flood-tolerance is dominant, while the allele for flood-intolerance is recessive.
It’s almost your favorite cousin’s birthday, and this year you want to surprise her with a pet arthropod. Her parents, well aware of the conversations you have together about bugs and creepy-crawlies,” have told you, emphatically, that you absolutely may not buy her any insects, crabs, spiders, or poisonous creatures. Which of the following should you buy for your cousin?
a. a tarantula b. a centipede c. a millipede d. a scorpion
The fungus Armillaria causes ____ in plants.
A. leaf blight B. root rot C. wilt D. leaf rolling E. yellowing
What step in the respiratory process of mammals requires the most energy?
A. Binding of oxygen to hemoglobin B. Activity of carbonic anhydrase in the lungs C. Inhalation D. Movement of carbon dioxide into red blood cells E. Transport of oxygen across the walls of the alveoli F. Exhalation