A characteristic is observed in an offspring that is not present in the parents. Which of the following would cause a change in the phenotype of the offspring that was NOT present in the parent?

a mutation during cell replication in the parent body cells
a mutation during cell replication in the offspring sex cells
a mutation during gamete formation in the parent sex cells
a mutation during gamete formation in the offspring body cells

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Can someone i have no idea of how to do this.