Unit 3 and Unit 4 Flashcards Preview

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Flashcards in Unit 3 and Unit 4 Deck (16):
1

stages of mitosis

PMAT (prophase, metaphase, anaphase, and telophase)

2

asexual reproduction

involves one parent, produces genetically identical offspring

3

binary fission

parent cell splits into two daughter cells that are identical in size

4

fragmentation

parent organism breaks into fragments and new organisms develop from those pieces

5

budding

parent cell forms a bud that stays attached; when fully developed it breaks away and forms a new organism

6

parthenogenesis

the production of an organism without fertilization

7

sexual reproduction

involves two parents; produces genetically unique offspring

8

gametes

haploid cells that contain HALF the number of chromosomes found in other cells of the organism

9

Human gametes are...

sperm (males) and eggs (females).

10

fertilization

two gametes unite

11

A fertilized cell is also called...

a zygote

12

prophase

longest phase of mitosis where chromatin condenses and the nuclear envelope breaks down; centrioles begin to move to opposite sides of the cell

13

metaphase

spindle fibers attach to the centromeres of each pair of sister chromatids; sister chromatids line up on the equator of the cell

14

anaphase

sister chromatids separate and the centromeres divide; at the end each pole has a complete set of chromosomes

15

telophase

chromosomes begin to uncoil and form chromatin; spindle also breaks down and nuclear membranes form

16

cytokinesis

final stage of cell division where the cytoplasm splits and the cell divides