__________ are multiple copies of a short DNA sequence that occur at a given locus. Fill in the blank(s) with the appropriate word(s)
ANSWER: Short tandem repeats
You might also like to view...
Protein structure can be predicted nonexperimentally by ____
a. microscopy b. nuclear magnetic resonance c. X-ray crystallography d. computer algorithms based on amino acid chemistry e. electrophoresis
A researcher is using molecular phylogenetic techniques to determine the evolutionary relationships of a large set of animal species. Which type of species are most likely to have been wrongly classified based on morphology alone?
A. Parasitic species B. Terrestrial species C. Species with spiral development D. Bilateral species E. Aquatic species
A botanist examines two plants. Plant A has large colorful petals; plant B has extremely tiny white flowers. Which one is most likely animal pollinated?
A. Plant A B. Plant B
Surprising new evidence has shown that, in some cases, environment factors can modify chromosomes in such a way that changes the expression of genes without changing themselves or any part of the DNA sequence. These modifications are called epigenetic effects. Epigenetic effects can sometimes even be passed from generation to generation. In what way would this kind of "inheritance" be an exception to Mendel's laws?
A. According to Mendel's laws, the effects of our environment are not passed on to the next generation. B. Since they are scientific laws, Mendel's laws can't be violated even if there is new evidence to the contrary. C. These effects must be caused by mutations. D. Mendel's laws apply only to pea plants, not all sexually reproducing organisms.