Genetic key terms Flashcards
(12 cards)
1
Q
What is a Gene?
A
a section of dna that codes for a specific protein
2
Q
What is an allele
A
alternate forms of a particular gene
3
Q
what is a genotype
A
the combination of alleles for a specific gene
4
Q
What is a phenotype
A
physical expression of the genotype (what we acc see)
5
Q
What is Hetrozygous
A
alleles are different
6
Q
What is homozygous
A
alleles are same
7
Q
what is dominant
A
only need 1 copy of allele present to express trait
8
Q
what is recessive
A
two copies of allele needed to express the trait
9
Q
what is a Genome
A
all the genes/ DNA in an organism
10
Q
name of type of genetic control where many genes control one phenotype:
A
polygenic
11
Q
DNA
A
double helix polymer that stores genetic code
12
Q
chromosome
A
a structure found in the nucleus which is made up of a long strand of DNA
