Shared Flashcard Set

Details

Cell Reproduction
Reproduction of cells
25
Science
7th Grade
11/16/2012

Additional Science Flashcards

 


 

Cards

Term
Asexual Reproduction
Definition

Reproduction with only one parent

 

Examples: fission; budding

regeneration

 

Term
Mitosis
Definition
The process in which the nucleus divides into and forms two identical nuclei.
Each nucleus also is identical to the original nucleus.

Some organism use this process for asexual reproduction.
Term
Sexual Reproduction
Definition
physical reproduction between two parent organims male and female.
Term
Sperm
Definition
Male sex cell
Term
Egg
Definition
Female sex cell
Term
Fertilization
Definition
The joining of sperm and egg cell.
Term
Zygote
Definition
fertilized cell
Term
Diploid Cell
Definition
cells that have similar pairs of chromosomes.

Body cells are examples diploid cells
Term
Haploid Cell
Definition
cells with only 1/2 of chromosome pair.

Sex cells are haploid cells.
Term
Meiosis
Definition
Cell reproduction process that produces the haploid sex cells.

Meiosis ensures that the offspring will have the same diploid number
Term
DNA
Definition
Contains the information for an organisms growth and function.

Stored in the cells that have a nucleus.
Term
gene
Definition
is a section of DNA on a chromosome. It is the specific instructions for making a specific protein for cells and tissues.
Term
RNA
Definition
The codes for making proteins are carried from the nucleus to the ribosomes
Term
Mutations
Definition
Mistakes that happen when DNA is being copied.

They are permanent change to the DNA sequence
Term
chromosomes
Definition
the structure in the cell that contains the hereditary material
Term
allele
Definition
the different forms of a trait that a gene may have
Term
heredity
Definition
the passing on of traits from parent to offspring
Term
dominant trait
Definition
the trait that covers up or masks another trait represented with capital letter
Term
recessive trait
Definition
the trait that is hidden by another trait represented with lower case letter.
Term
hybrid
Definition
an organism that receives different genetic information or different alleles than what the parent exhibits.
Term
pure-bred
Definition
an organism that receives the same genetic information or alleles as what the parent exhibits.
Term
genotype
Definition
the genetic code for a trait represented by letters
Term
phenotype
Definition
the physical appearance of the trait by the genetic code.

Ex: hair color brown, blonde, red etc..
Term
homozygous
Definition
same genetic code two dominant or two recessive: considered pure-bred
Term
heterozygous
Definition
different genetic code one dominant the other recessive: considered hybrid
Supporting users have an ad free experience!