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science
na
25
Science
7th Grade
12/10/2013

Additional Science Flashcards

 


 

Cards

Term

heredity

 

Definition
the passing of characteristics from parents to offspring
Term

trait

 

Definition
Each different form of a characteristic
Term

genetics

 

Definition
the scientific study of heredity
Term
fertilization
Definition
an organism forms when a egg and sperm join together
Term

purebred

 

Definition
organism is the offspring of many generations that have the same trait
Term
gene
Definition
factors that control a trait
Term
alleles
Definition
different froms of genes
Term
dominant allele
Definition

a trait that shows up in the organism when the allele is present

 

Term

recessive allele

 

Definition
hidden whenever the dominant allele is present
Term
hybrid
Definition

a organsim that has two different alleles for a trait

 

Term
probability
Definition
the results of a particular event
Term
punnett square
Definition
all the possible allele combinations
Term
homozygous
Definition
two identical alleles for a trait
Term
genotype
Definition
physical appearance
Term

heterozygous

 

Definition
has two different alleles for a trait
Term
phenotype
Definition
genetic makeup allele combinations
Term
codominance
Definition
for some a alleles inheritance pattern
Term
meosis
Definition
chromosome number is reduced by half to form sex cells sperm and eggs
Term
messenger Rna
Definition
copies the coded message from the Dna in the nuclus and carries the message to the ribosome in the cytoplasm
Term
transfser Rna
Definition
carries amino acids to ribosome and adds to growing proteins
Term
mutation
Definition
change in a gene or chromosome
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