Bio. Flashcards
0
Q
Allele
A
Version of a gene (D/R) Humans have 2 genes for each trait (1 on each homologous chromosome)
1
Q
Gene
A
A section of DNA that contains instructions for making 1 trait
2
Q
Genotype
A
The types of the genes of an organism (in their DNA)
3
Q
Phenotype
A
Observable characteristics of an organism (you can see the trait)
4
Q
Heterozygous
A
2 different alleles of a particular gene (Aa)
Hybrid=>different
5
Q
Homozygous
A
2 identical alleles of a particular gene (AA)
Pure bread =>identical
6
Q
Recessive
A
Gene that’s only expressed in homozygous condition (aa)
7
Q
Dominant
A
Gene that’s expressed in homozygous or heterozygous condition (AA or Aa)
8
Q
Gamete
A
Haploid sex cells created for sexual reproduction
9
Q
Somatic
A
Cells contain DNA arranged in chromosomes
