DNA Flashcards
What shape is the DNA structure
Double helix
In DNA what are the two long chains made of
Alternating sugar and phosphate molecules
What are the long chains connected by
Bases
What does DNA stand for
Deoxyribonnucleic acid
Where is DNA found
The nucleus of a cell
What is a gene
A characteristic which is passed along to the offspring
What do genes do
They hold genetic codes for different characteristics
How many pairs of chromasomes come from each parent
23 from each parent 46 in total
What are chromasomes made up from
Long lengths of DNA coiled up around proteins
What is homozygous
The alleles are the same (AA or aa)
What is hetrozygous
The alleles are different (Aa)
What is the genotype
The alleles present
Phenotype
The physical expression of the genotype
What is the nucleus
A place in an eukkaryotic cell where the genetic material is stored
What are the sex cells called
The gamates
