Lecture 13 Vocab

Front 1

interphase

Back 1

the part of the cell cycle where the cell is not dividing. Includes the G1, S, and G2 phases.

Front 2

G1 phase

Back 2

growth phase, when the cell grows, makes stuff, and focuses on doing it's job for the organism

Front 3

S phase

Back 3

synthesis phase, when the cell replicates its DNA

Front 4

G2 phase

Back 4

the cell continues to grow and prepares for mitosis

Front 5

M phase

Back 5

mitotic phase - includes mitosis and cytokinesis

Front 6

mitosis

Back 6

division of the nucleus

Front 7

cytokinesis

Back 7

division of the cytoplasm

Front 8

sister chromatids

Back 8

the replicated copies of a chromosome

Front 9

centromere

Back 9

a structural region of the chromosome, where the sister chromatids are most closely attached

Front 10

prophase

Back 10

phase 1 of mitosis. chromosomes condense.

Front 11

prometaphase

Back 11

phase 2 of mitosis. the nuclear envelope breaks up. microtubules grap the chromosomes by their kinetochores.

Front 12

kinetochores

Back 12

protein complex at the centromere of a chromosome. it allows the microtubules to attach and then walks the chromosome along the microtubules.

Front 13

metaphase

Back 13

phase 3 of mitosis. the push and pull of microtubules eventually lines up the chromosomes

Front 14

metaphase plate

Back 14

the imaginary plane down the middle of the cell, where the chromosomes line up

Front 15

anaphase

Back 15

phase 4 of mitosis. the chromosomes split, and each chromatid becomes a chromosome in its own right. the chromatids are walked along the microtubules toward opposite ends of the cell.

Front 16

telophase

Back 16

phase 5 of mitosis. the two new nuclear envelopes form.