Lecture #3 Flashcards
1
Q
What is an allele?
A
two or more forms of the same gene
2
Q
What is a locus?
A
a spot on a chromosome where a gene is located
3
Q
What are sister chromosomes?
A
2 copies of a single chromosome and so are genetically identical
4
Q
What are homologous chromsomes?
A
2 physically different chromosomes that contain some of the same genes
5
Q
What is the principle of dominance?
A
In a heterozygote, the dominant allele will conceal the presence of another allele
6
Q
What is the principle of segregation?
A
In a heterozygote, during the formation of a gamete the two alleles separate from each other
