A polypeptide that has a net positive charge at physiologic pH (~7.4) would most likely contain amino acids with R groups of what type

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.

The light is great source of energy

From our previous experiment, we examined how many drops a penny can hold - and place drops of salt water on the penny after recording 5 trials each, take the average of each solution.