Assume you were studying two characteristics of peas, and when you crossed heterozygous F1 individuals you did not see the 9:3:3:1 ratio predicted for a dihybrid cross. You later found that these two characteristics were on the same chromosome. With this information, how would you explain the results?
A. The results can be explained as polygenic inheritance.
B. There must have been a mutation.
C. The genes must be on the sex chromosomes.
D. The genes are linked and are inherited together.
D. The genes are linked and are inherited together.
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Members of the supergroup Amoebozoa are characterized by:
A. locomotion via pseudopodia B. hard shells composed of calcium carbonate C. plastids acquired through tertiary endosymbiosis D. alveoli beneath the plasma membrane E. the presence of a feeding groove
Polymerase Chain Reaction is a technique to produce multiple copies of a sequence of DNA
Indicate whether the statement is true or false.
What organisms are responsible for harmful algal blooms?
a. Diatoms b. Coccolithophores c. Dinoflagellates d. Ciliates
What is an area of the Earth's surface currently undergoing primary succession?
A. Shallow seas with low productivity B. Volcanoes in Iceland C. Redwood forests along the northwestern U.S. coast D. Old orange groves in Florida