AP Bio Unit 4 Review Exam Questions With Correct Answers 100% Verified.

AP Bio Unit 4 Review Exam Questions With Correct Answers 100% Verified. In what form is DNA loose non-condensed and condense and organized? - answernon- condensed=chromatin; condensed=chromosome 2 gametes combine to form a _____. What are the 2 gametes? - answerzygote; sperm and egg What occurs during anaphase? - answersister chromatids separate What happens when a cell undergoes mitosis but not cytokinesis? - answerthe cell has 2 nuclei Following (but not including) which phase of the cell cycle do we have 2 sister chromatids? - answerS phase This protein is involved in passing cell cycle checkpoints and its concentration will cycle up and down depending on what stage of the cell cycle the cell is in - answercyclin What occurs during the S phase? - answerDNA synthesis Mitosis produces what kinds of daughter cells? - answer2 genetically identical cells with 46 chromosomes Which checkpoint in the cell cycle is considered the restriction point? - answerG1 checkpoint When do chromosomes first become visible in mitosis? - answerprophase In both mitosis and meiosis, sister chromatids separate during anaphase, but there are ___ haploid daughter nuclei produced by meiosis compared to ____ diploid nuclei by mitosis - answer4; 2 What is the period in the cell cycle between divisions? - answerinterphase When does the nuclear envelope disappear in mitosis? - answerprophase Meiosis reduces _____. Fertilization restores _____. - answerchromosome number Once mitosis is complete what is the next step? - answercytokinesis When does crossing over occur in Meiosis? - answerProphase I