Is a defendant's failure to object to or seek clarification or object to the instructions he now challenges?

Is a defendant's failure to object to or seek clarification or object to the instructions he now challenges? (California, United States of America)

Does a defendant's failure to object or request clarifying or corrective language in a jury instruction forfeit an appellate challenge to that instruction? (California, United States of America)

Is a Defendant's failure to object or request a clarifying instruction below forfeits his ability to challenge the given instruction? (California, United States of America)

Does a defendant's failure to object when the instruction was given forfeit his challenge on appeal? (California, United States of America)

Does defendant have any grounds of objection to the instruction in his personal injury case where he objected to the reference in the instruction to evidence of threats? (California, United States of America)

Does a defendant's failure to request clarification or amplification of an otherwise correct instruction on an instruction or in particular on appeal? (California, United States of America)

Is a defendant's failure to object to or request that an instruction be omitted or omitted from a jury's instructions forfeits his claim on appeal? (California, United States of America)

Is a defendant's failure to request additional instructions or request clarification of existing instructions a waiver of their right to complain of any omission on appeal? (California, United States of America)

Is a plaintiff's failure to object to the jury instructions forfeited their challenge to the instructions? (California, United States of America)

Can a defendant waive a challenge to a trial court's failure to instruct on a lesser included offense? (California, United States of America)