#Question id: 365
#SCPH28 | Zoology
Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.
#Question id: 75
#SCPH05 I Biotechnology
The experimental approach taken in current biological investigations presumes that ________.
#Question id: 15817
#SCPH01 Biochemistry
You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium
Based on these experiments, what is the minimum number of genes required for threonine synthesis?
#Question id: 4833
#SCPH12 I Genetics
If the percentage of chance of crossing over between two genes is10, then the distance between two genes will be
#Question id: 13039
#SCPH05 I Biotechnology