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Details

16.1
Mitosis and Meiosis
18
Science
7th Grade
12/15/2010

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Term
Sperm
Definition
formed in the male reproductive organs of the cell
Term
asexual reproduction
Definition
a new organism is produced that has identical hereditary material as the parent organism
Term
meiosis
Definition
process by which sex cells are created in the reproductive organs, producing 4 haploid cells from 1 diploid cell
Term
DNA
Definition

deoxyrbonuclecic acid

 

an organisms information code

 

contained in every cell that has ever been formed

 

shaped like a twisted ladder

Term
egg
Definition
formed in the female reproductive organ of the cell
Term
Order of Meiosis
Definition

meiosis I

Prophase I

Metaphase I

Anaphase I

Telaphase I

 

meiosis II

 

Prophase II

Metaphase II

Anaphase II

Telophase II

Term
fertilization
Definition
the joining of the egg cell and the sperm cell
Term
Haploid Cells
Definition
cells that do NOT have pairs of chromosomes
Term
Sexual Reproduction
Definition
a process by which a new unique organism is created when 2 sex cells an egg and a sperm come together
Term
What are the 4 nitrogen bases that make up DNA
Definition

G- guanine-------- C- Cytosine

 

A- Adenine--------- T- Thymine

Term
RNA
Definition

carries the code for making proteins from the nucleus to the ribosomes

. Ribonucleic acid

 

made up of only one strand

Term
mutation
Definition
any permanet change in a genee or chromosome of a cell
Term
What are the 3 types of asexual reproduction
Definition

Fission

Budding

Regeneration

Term
gene
Definition

the section of DNA ib a chromosome that directs the making of a specific protein

 

gives the directions for the order in which amino acids will be arranged

Term
Diploid Cells
Definition
a cell with pairs of chromosomes
Term
 mitosis
Definition
a series of continous steps in which the cell nucleus divides to for 2 identical nuclei
Term
Interphase
Definition
a period of cell growth and division
Term
order of mitosis
Definition

prophase

metaphase

anaphase

telophase

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