In avocets, curved beaks result from a Z-linked recessives gene. A curve-beak male is mated with a flat-beaked (normal) female. The F1 are interbred to produce the F2. What is the probability of producing a curve-beak female in the F2

50%

Explanation:

        Z        O

z    Zz        zo

z    Zz        zo

The males will have two copies of the alleles of the genes present on the Z chromosomes. As females have only one Z chromosome, they will have only one allele for the genes present on the Z chromosome.

The results from the punnet square show that there will be chance that the females of the F2 progeny will have curved-beaks.

The nature of photosynthesis is C) an energy-releasing proces. During photosynthesis, molecules are released that the plant will then feed upon to enable it to be able to grow. In this process, the form of energy produces comes with the substance glucose, which is necessary for further processes allowing the plant to grow and repair itself to take place.