Use the format to show the punnett square

parent 1 genotype × parent 2 genotype
percent chance of an offspring having the bb genotype
percent chance of an offspring having the bb genotype
percent chance of an offspring having the bb genotype
genotypic ratio
percent chance of an offspring having the dominant trait
percent chance of an offspring having the recessive trait
phenotypic ratio

The genotype of the parents are not given. Let's try to answer this question generally. Let's assume the genotype of both parents to be Bb as genotype is not given.

Explanation:

       B        b

B    BB      Bb

b     Bb      bb

There is a 25% chance that the offspring will have BB genotype.

There is a 50% chance that the offspring will have Bb genotype.

There is a 25% chance that the offspring will have bb genotype.

There is a 75% chance that the offspring will have a dominant trait.

There is a 25% chance that the offspring will have recessive trait.

Phenotypic ratio will be 3:1

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.