Genetics Flashcards
How many chromosomes are in each human cell?
46 or 23 pairs
True or false, chromosomes are never divided.
False, chromosomes are exactly duplicated every time your body makes a new cell.
The genetic material/ the directions for an organism.
DNA
What does DNA stand for?
Deoxyribonucleic said
What is made of DNA?
Chromosomes.
A location on a chromosome with directions for a trait.
Genes
A form or type of gene
Allele
What does a allele contain?
The directions for one articulate trait.
How are Alleles labeled?
With letters of the alphabet.
What letters are Alleles labeled with when the trait is dominant?
The letters are capitalized
What type of letters used to label alleles when the trait is recessive?
Lower case.
Having both of the inherited traits alleles.
EX: Tt
Genotype.
If the alleles on two chromosomes are alike
Homozygous
If alleles on two chromosomes are different
Heterozygous
What a genotype looks like
Phenotype