Understanding Mitosis: Karyokinesis Stages Quiz

Play an AI-generated podcast conversation about this lesson

Which stage of mitosis follows the S and G2 phases of interphase?

Anaphase

Metaphase

Prophase (correct)

Telophase

What is the main characteristic event marking the completion of prophase in mitosis?

Chromosomal material untangles

Centrosome duplicates

Chromosomal material condenses into mitotic chromosomes (correct)

Formation of asters

What is the structure that radiates out microtubules called asters during prophase of mitosis?

Spindle fibers

Centromere

Centrosome (correct)

Chromosome

During which phase of mitosis do chromosomes condense to form compact structures?

Prophase Signup and view all the answers

What is the main function of the centrosome during prophase of mitosis?

Movement towards opposite poles of the cell Signup and view all the answers

In which phase of interphase are the new DNA molecules formed but not distinct?

S phase Signup and view all the answers

What is a key event that characterizes the telophase stage of mitosis?

Chromosomes decondense and lose their individuality Signup and view all the answers

What happens at the onset of anaphase in mitosis?

Chromosomes split and chromatids separate Signup and view all the answers

Which direction does the centromere of a chromosome face during anaphase?

Towards the pole it is moving away from Signup and view all the answers

What is a characteristic of the metaphase stage in mitosis?

Chromosomes align along the metaphase plate Signup and view all the answers

Which statement is true regarding the movement of chromosomes during telophase?

Chromosomes decondense and lose their individuality Signup and view all the answers

What happens to the identity of individual chromosomes during telophase?

They decondense and lose their individuality Signup and view all the answers

During which stage of prophase I in meiosis do chromosomes become gradually visible under the light microscope?

Leptotene Signup and view all the answers

What is the main difference between prophase I in meiosis and mitosis?

Prophase I in meiosis involves pairing of homologous chromosomes Signup and view all the answers

What is the main outcome of meiosis I?

Production of haploid gametes Signup and view all the answers

How many cycles of DNA replication are involved in meiosis?

One Signup and view all the answers

What is the key feature that distinguishes meiosis I from meiosis II?

Number of daughter cells produced Signup and view all the answers

What is the function of meiosis in sexually reproducing organisms?

Increase genetic variation through recombination Signup and view all the answers

What is the complex structure formed during chromosome synapsis in prophase I called?

Synaptonemal complex Signup and view all the answers

Which stage of prophase I is characterized by the appearance of recombination nodules?

Pachytene Signup and view all the answers

What is the name given to a pair of synapsed homologous chromosomes?

Bivalent Signup and view all the answers

Which enzyme is involved in the crossing over process during prophase I?

Recombinase Signup and view all the answers

What is the process that leads to genetic material exchange between homologous chromosomes in prophase I?

Crossing over Signup and view all the answers

Which stage of prophase I marks the completion of recombination between homologous chromosomes?

Pachytene Signup and view all the answers

What marks the beginning of diplotene?

Dissolution of the synaptonemal complex Signup and view all the answers

What are the X-shaped structures that form in diplotene called?

Chiasmata Signup and view all the answers

Which phase marks the transition to metaphase in meiosis I?

Diakinesis Signup and view all the answers

What happens during telophase I of meiosis I?

Nuclear membrane and nucleolus reappear Signup and view all the answers

What occurs during anaphase I of meiosis I?

Homologous chromosomes separate Signup and view all the answers

What is the stage between two meiotic divisions called?

Interkinesis Signup and view all the answers