UNIT III_CELL DIVISION AND OVERVIEW OF ANIMAL INHERITANCE/GENETICS

This is a series of events that take place in a cell as it grows and divides

The cell spends most of its time in what phase?

A cell division of somatic cells undergoes self-cloning in which a cell duplicates into two genetically identical daughter cells

What are the phases of Mitosis?

Chromosome shortens or condenses in this phase - centrioles move to the opposite sides of the cell -nuclear membrane breakdown - the nucleolus disappears - mitotic spindle begins to form

Proteins attach to centromeres creating kinetochores - microtubules attach at kinetochores - connect the centromere to the centrioles - chromosome begins moving

Chromosomes line up along the center of the cell - centromeres now attach to spindle fibers - spindle apparatus is clearly visible

Phase of migration - spindle apparatus begins to break down and the centromeres break up - separates chromosome copies

Phase of reconstruction - end results into two separate nuclei - chromosomes arrive at the opposite poles - spindle apparatus completely disappears - nuclear envelope forms around both sets of chromosomes

This is the division of the cytoplasm forming two separate daughter cells

What do you call the center of the cell?

In animal cell, the membrane pinched together to form a?

In plant cell, what should be formed in order to separate two daughter cells?

What do you call the nuclear division that reduces the number of chromosomes in a cell?

What nuclear division results to 4 haploid cells?

What separates the homologous chromosomes?

Cells prepare for division in what phase?

In Prophase I, the homologous chromosomes come together intimately and form ___ which is the connecting of homologous chromosomes to form tetrads

What do you call the process resulting from the intertwining of the sister chromatids and homologous pairs swap pieces of chromosomes?

Process which creates completely new combination of traits

What phase do synapsis and crossing-over occur?

A phase where each homologous chromosome is pulled to the opposite sides - centromeres do not break and the sister chromatids of each chromosome remain attached

What is the product of Meiosis I?

What is the product of Meiosis II?