Four of the five phenotypes listed below are
dominant traits in garden peas. Select the exception.
a. green pod
b. purple flower
c. yellow seed coat
d. dwarf plant
e. axial flower position
Answer: d
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Based on the table of average intron frequency given below, predict the relative order of genome size for these four eukaryotic organisms
Organism Average Intron Frequency Cryptosporidium parvum 0 Plasmodium falciparum 1 Arabidopsis thaliana 5 Homo sapiens 8 A) Homo sapiens > Arabidopsis thaliana > Plasmodium falciparum > Cryptosporidium parvum B) Cryptosporidium parvum > Plasmodium falciparum > Arabidopsis thaliana > Homo sapiens C) Homo sapiens > Cryptosporidium parvum > Plasmodium falciparum > Arabidopsis thaliana D) Intron frequency cannot be used to predict genome size in eukaryotes.
Why aren't insect tracheae associated with capillary beds?
A. Insects have an open circulatory system. B. Insects have external gills associated with hemolymph vessels. C. Insects use an air sac respiratory system. D. Insect capillaries are found only around the gut.
Which of the following paired terms are incorrectly matched?
a. classical conditioning?extinction b. habituation?relevant stimuli c. imprinting?behavioral bonding d. insight?trial and error e. operant conditioning?reward
In all vertebrate animals, development requires _____
A) a large supply of yolk B) an aqueous environment C) extraembryonic membranes D) a primitive streak