If the GC content of a DNA molecule is 60 percent, what are the molar percentages of the four bases (G, C, T, A)?
What will be an ideal response?
G = 30%, C = 30%, T = 20%, A = 20%
You might also like to view...
With one exception, species of the genus Haemophilus require which of the following media ingredients for in vitro growth?
a. Vitamin K and hemin b. Hemin and nicotine adenine dinucleotide (NAD) c. Vitamin K and NAD d. Hemin and cysteine
Name each of the three polypeptides of troponin chains and identify what each binds to
________ binds to ________ ________ binds to ________ ________ binds to ________ Fill in the blank with correct word.
In vertebrates, the family of myogenic regulatory factors (MRFs) plays a major role in muscle development. This family consists of four related genes which have distinct but overlapping functions. This gene family is represented by only a single gene in Drosophila, called nautilus. You want to know whether nautilus plays a role like all of the MRFs put together, or more like one in particular. What is a quick and easy way to begin to address this question?
A. Generate four transgenic Drosophila strains that express the MRFs in a mutant nautilus background. B. Use a DNA microarray to compare gene activation patterns between nautilus and the MRFs. C. Compare the DNA and protein sequences of all the genes to determine if nautilus is more similar to one MRF than another. D. Compare the proteome of a cell expressing nautilus to the those of cells expressing each of the MRFs in turn.
Explain two important sources of genetic variation in meiosis. Evolutionarily speaking, why do you think is it important that meiosis involves recombination of the genes?
What will be an ideal response?