#Question id: 2651
#Unit 2. Cellular Organization
In the presence of lactose, how long does it take for the lac operon to be expressed?
#Question id: 5695
#Unit 8. Inheritance Biology
Triploids are usually autopolyploids. They arise spontaneously in nature, but they can be constructed by geneticists from the cross of a 4n (tetraploid) and a 2n (diploid). Triploids are characteristically sterile due to
#Question id: 4909
#Unit 8. Inheritance Biology
A pattern of transmission where all offspring have the same phenotype as their mother is consistent with which type of non-Mendelian inheritance?
#Question id: 4813
#Unit 8. Inheritance Biology
You perform the three different two-factor crosses (Cross 1: XY and xy, Cross 2: YZ and yz, and Cross 3: XZ and xz). Assume all crosses are between diploid flies homozygous for the alleles of these genes. You observe 7% recombinants in the first cross, 20% recombinants in the second cross, and 13% recombinants in the third cross. if cross between XyZ and xYz leads to which of the followining recombinant with double cross over .
#Question id: 353
#Unit 1. Molecules and their Interaction Relevant to Biology
Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?