Meiosis MCQs

Human gametes (sperm cells and egg cells) have _ chromosomes

12
23
16
46

Correct Answer

In _ of meiosis, the cell’s nuclear membrane breaks down, the chromatids coil to form visible chromosomes, the nucleoli break down and disappear, and the spindles form and attach to the chromosomes

Telophase I
Anaphase I
Metaphase I
Prophase I

Correct Answer

Prophase I

_ happens when the two chromosomes of each pair find each other and stick together

Metaphase plate
Synapsis
Chromosome fixing
None of these

Correct Answer

Synapsis

In synapsis, two homologous chromosomes can swap equal amounts of DNA in an event called?

Metaphase plate
Crossing over
Chromosome fixing
None of these

Correct Answer

Crossing over

new arrangement of four chromatids after crossing over is called a _.

Fork
pin
tetrad
None of these

Correct Answer

tetrad

_ is when the pairs of homologous chromosomes line up in the center of the cell in meiosis

Telophase I
Anaphase I
Metaphase I
Prophase I

Correct Answer

Metaphase I

During _ phase in meiosis, the two members of each homologous pair go to opposite sides of the cell, and the chromosome number is officially reduced from diploid to haploid

Telophase I
Anaphase I
Metaphase I
Prophase I

Correct Answer

Anaphase I

_ in meiosis is when the cell takes a step back (or forward, depending on your perspective) to an interphase-like condition by reversing the events of prophase I.

Telophase I
Anaphase I
Metaphase I
Prophase I

Correct Answer

Telophase I

In _ of meiosis, the nuclear membrane disintegrates, the nucleoli disappear, and the spindles form and attach to the chromosomes.

Telophase II
Anaphase II
Metaphase II
Prophase II

Correct Answer

Prophase II

In _ of meiosis, the chromosomes line up at the equatorial plane

Telophase II
Anaphase II
Metaphase II
Prophase II

Correct Answer

Metaphase II

In _ of meiosis, The sister chromatids of each replicated chromosome move away from each other to opposite sides of the cell.