A different strain of grain has variation in oil content too. Diploid grain is influenced by four genes (A or a through D or d) with two additive alleles each. The highest-producing strain has 24% oil content; the lowest has 0%. What is the probable contribution to oil production from each type of allele?  

_____ can cause a single genotype to produce a range of potential phenotypes.

A population may eventually stop responding to artificial selection because:

The following fragment of DNA was sequenced and then treated with sodium bisulfite. Compare both sequences and determine which Cytosines were originally methylated and which were not. The presence of methylated cytosines should be indicated including an asterisk (*) after each methylated cytosine. Untreated         ACTACCATGGCGCTT Treated              ACTATCATGGCGTTT  

Which of the following might affect the Mendelian inheritance of organismal traits?

The following fragment of DNA was sequenced and then treated with sodium bisulfite. Compare both sequences and determine which Cytosines were originally methylated and which were not. The presence of methylated cytosines should be indicated including an asterisk (*) after each methylated cytosine. Untreated         ACTACCATGGCGCTT Treated              ACTATCATGGCGTTT  

The following are true statements about mutations except:

A sunflower population has a mean of 100 days to flowering. Two parents were selected that had a mean of 70 days to flowering. The quantitative trait “days to flowering” has a heritability of 0.4. What would be the mean of a population derived from crossing these two parents? h2=R/S

What would the following mutation in the coding strand cause? 5 -ATG ACG TTT GAA ATT CAG TCT AGA-3 5 -ATG ACG TTT GAA ATT TAG TCT AGA-3    

Through which of the following methods are we able to determine with certainty the function of a particular DNA segment?