Question: In maize, two plants that are both heterozygous for the recessive alleles a and b are crossed. What frequency of double-mutant progeny will appear if a and b are 7.2 map units apart, and both parents carry a and b in repulsion (trans)? Question: Why are the cells of the stratum […]

In order to ensure that chromosomal DNA is replicated once and only once in each cell cycle, eukaryotic cells have evolved a complex system of control involving Cdc6, a pre-replicative complex, Origin recognition complex and S-Cdk. A. You activate the promoter of Cdc6 so that gene expression and protein production […]

1)The allele responsible for the Siamese coat-color pattern produces an unstable tyrosinase enzyme. This type of gene product is an example of what type of allele? 2) Determine which mode of inheritance produces heterozygotes with phenotypes that differ from either homozygote but more closely resembles one homozygous phenotype than the other? […]

You are a biochemistry specialist who has been asked to provide information on the role of DNA and RNA in the transmission of information within the cell. The audience for your report is a group of medical paraprofessionals at a community health center. Requirements: A. Create an original diagram, or […]