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Based on the law of conservation of energy, the ___ of potential and kinetic energy is constant.

Consider the reaction profile shown below. Choose the best description of the thermodynamics of the reaction.

An unusual phenotype in Drosophila is singed bristles.  Flies with singed bristles look like they have survived an encounter with a blowtorch!  A geneticist first created a purebred culture of flies with singed bristles and then bred those flies with a purebred culture of wild flies (with normal bristles).  In the F1 generation, all flies had normal wild-type bristles.  When the F1 flies were allowed to mate among themselves, the following F2 generation was produced: 70 flies with singed bristles and 166 flies with normal bristles.  Determine a proposed inheritance of singed bristles and analyze the F2 data using chi-square (X2, chi-square) analysis. 

Crossing over presumably occurs during

A mutation occurs to a coding region of an exon changing the DNA sequence from CGG to CGA. Will there be a change in the protein once expressed, and if so what is that change?

A nucleosome is _____.

If you wanted to prepare a karyotype of some organism, in what phase of cell division would it be easiest to see the chromosomes?

The modern term for Mendel’s “unit factors” is __________________________. 

Directions: Answer questions A-D below. Use letters A-D to indicate which part of the question you are answering. Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized. If the capital letters represent dominant, independently assorting alleles: A. How many different genotypes will occur in the F2? _________ B. What proportion of the F2 genotypes will be recessive for all five loci? ______   C. Would you change your answers to part (a) and or part (b) if the initial cross occurred between AAbbCCddee x aaBBccDDEE parents?   D. Would you change your answers to part (a) and/or part (b) if the initial cross occurred between AABBCCDDEE x aabbccddEE parents?    

A nucleosome is