Deck 6 Flashcards Preview

Introduction to Biology > Deck 6 > Flashcards

Flashcards in Deck 6 Deck (30)
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1

cell cycle

series of events that cells go through as they grow and divide

2

Interphase

period of the cell cycle between cell divisions

3

parent cell

original cell before cell division

4

Mitosis

cell division in which the nucleus divides into nuclei containing the same number of chromosomes

5

Cytokinesis

Division of the cytoplasm during cell division

6

daughter cell

a cell formed by the division or budding of another cell

7

Histone

protein molecule around which DNA is tightly coiled in chromatin

8

Chromosome Condensation

Folding up of the chromosomes prevents transcription

9

Centromere

Area where the chromatids of a chromosome are attached

10

Diploid

containing two complete sets of chromosomes, one from each parent.

11

Homologous

Chromosomes that have the same sequence of genes and the same structure

12

Allele

An alternative form of a gene.

13

Haploid

An organism or cell having only one complete set of chromosomes.

14

Centromere

Region of a chromosome where the two sister chromatids attach

15

somatic cell

Any of the cells of a plant or animal except the reproductive cells.

16

Meiosis

Cell division that produces reproductive cells in sexually reproducing organisms

17

germ cell

a reproductive cell

18

Gamete

Specialized cell involved in sexual reproduction

19

Zygote

Fertilized egg

20

tumor suppressor gene

a gene that codes for regulator proteins that prevent the cell from undergoing uncontrolled division

21

Photo-oncogene

Genes that encourage cell division.

22

Mutation

A rare change in the DNA of a gene, ultimately creating genetic diversity.

23

Mutagen

A chemical or physical agent that interacts with DNA and causes a mutation.

24

Carcinogen

Cancer causing mutagen.

25

sister chromatid

one of a pair of identical chromosomes created before a cell divides

26

Prophase

Chromatin condenses into chromosomes

27

Metaphase

Chromosomes line up in the middle of the cell

28

Anaphase

Phase of mitosis in which the chromosomes separate and move to opposite ends of the cell

29

Telophase

the final stage of meiosis when the chromosomes move toward opposite ends of the nuclear spindle

30

asexual reproduction

Process by which a single parent reproduces by itself