Fertilization.
Meiosis.
Mitosis.
Recombination.
Synapsis.
One
Two
Three
Four
None of these
Syngamy.
Synapsis.
Prophase.
Recombination.
Centromere.
Gamete.
Haploid.
Zygote.
Germ line cell.
Somatic cell.
One copy of each chromosome.
One full haploid complement of chromosomes.
Chromosomes identical to those of a sperm cell.
Chromosomes identical to those of an egg cell.
Two copies of each chromosome.
Mitosis.
Meiosis.
Syngamy.
Haploid division.
Binary fission.
Gametic.
Muscles.
Nerves.
Skin.
Reproductive organ.
Homologue.
Kinetochore.
Centromere.
Microtubule complex.
Synapsis.
Meiosis
Mitosis
Gamete formation
Syngamy
Fertilization
Haploid cells.
Germline cells.
Sex cells.
Zygotes.
Sperm and egg cells.
Clearly defined spindle apparatus appears in the center of the cell.
Chromatids separate and move to opposite ends of the cell.
Half chromosomes are made inactive.
Homologous pairs of chromosomes pair up along their length.
Chromosomes become invisible.
Fertilization.
Mitosis.
Syngamy.
DNA replication.
Crossing over.
A full cell cycle.
A pairing of homologues.
Replication of some parts of the chromosomes.
No S phase.
Random combination among chromatids.
Prophase II.
Prophase I.
Interphase II.
Interphase I.
Metaphase II.
A cluster of chromatids at the end of the cell.
A framework of microtubules that organize chromatids.
A lattice of proteins that holds homologues together.
A set of two homologues lined side by side.
The wound up regions of DNA molecules.
One full set of chromosomes, each with two chromatids.
Two full sets of chromosomes, each with two chromatids.
One full set of chromosomes, each a single chromatid.
Two full sets of chromosomes, each a single chromatid.
A different number of chromosomes.
Plants
Fungi
Many protists
Animals
Crossing over in prophase I of meiosis.
Independent assortment in meiosis.
Fertilization.
Mitosis.
Organisms could then move onto land.
DNA replication errors could be corrected by recombination.
More and larger offspring could be produced.
Haploid cells require less energy and raw materials.
In anaphase I, where how one pair separates does not affect how any other pair separates.
Chromosomes are divided into daughter cells in a random fashion.
In prophase I, which chromosomes pairs with which other one is completely random.
Each chromosome is capable of a different function.
Chromosomes can have different functions in various types of cells of the same organism.
Mitosis is nuclear division, which ultimately leads to haploid gametes. Meiosis is nuclear division, which ultimately leads to diploid somatic cells.
Mitosis is nuclear division, which ultimately leads to diploid somatic cells. Meiosis is nuclear division, which ultimately leads to haploid gametes.
Mitosis is nuclear division, which ultimately leads to diploid gametes. Meiosis is nuclear division, which ultimately leads to haploid somatic cells.
Mitosis is nuclear division, which ultimately leads to syngamy. Meiosis is nuclear division, which ultimately leads to zygotes.
Mitosis
Meiosis
Syngamy
Synapsis
Reduction division
Syngamy.
Synapsis.
Meiosis.
Mitosis.
Crossing over.
A common centromere and the synapsis.
A common centromere and the chiasmata.
A common centromere and the recombination synapsis.
A common centromere and the synaptonemal complex.
A common centromere and the spindle fibers.
DNA synthesis
Prophase II
Metaphase II
Developing of a synapsis
Crossing over of the homologues