Sidney Brenner designed an experiment to determine if the triplet code was overlapping or nonoverlapping
If the code were overlapping, how many complete codons would the following sequence encode before encountering a stop codon? 5? - AUGCGAUUAUAGUGC - 3?
9 (AUG UGC GCG CGA GAU AUU UUA UAU AUA UAG)
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The macromolecules responsible for bacterial adherence that are NOT covalently attached to bacteria are collectively called
A) lipid A. B) biofilms. C) capsules. D) glycocalyx.
Which of the following is not an assumption of the Hardy-Weinberg law?
1.The population is very large 2.Heterozygotes are better than homozygotes 3.Mating is random 4.Mutation and migration are absent 5.No genotype is better than any other
Sometimes, the decline of one species threatens the survival of another species. Which scenario is an example of this?
a. declines in polar bears result in diminished prey populations b. the arrival of sailors on Mauritius island led to the extinction of dodo birds c. declines in eagle populations due to the accumulation of pollutants in their eggs d. decline in buffalo caused a drop in native buffalo clover e. pollution led to declines in the Texas blink salamander population
__________ are short sections of underground stem
encased by overlapping layers of thickened, modified leaves called scales. a. Stolons b. Rhizomes c. Bulbs d. Corms e. Tubers