Tetrads fail to separate correctly during anaphase in this process.
a. Crossing-over
b. Inversion
c. Translocation
d. Nondisjunction
e. Deletion
Ans: d. Nondisjunction
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Virtually all enzymes are:
A) carbohydrates. B) nucleic acids. C) proteins. D) substrates.
The multicellular sex organs in plants are known as:
a. gametes. b. spores. c. gametangia. d. fruits. e. sperm.
Before being loaded into the phloem for translocation, the carbohydrates produced during
photosynthesis must be converted into which molecule? a. glucose b. fructose c. maltose d. sucrose e. galactose
A spider and an insect are both arthropods, but they have some different characteristics. Choose the descriptions that are true for BOTH a spider and an insect. Check all that apply.
A. They are members of Ecdysozoa. B. They have a head, a thorax, and an abdomen. C. They have sensory antennae. D. They have an open circulatory system. E. They have metamorphosis. F. Some species are carnivorous and some are herbivorous. G. They have spinnerets. H. They have a chitinous exoskeleton. I. They molt.