genetics explained Flashcards
1
Q
A segment of DNA that codes for one protein:
A
gene
2
Q
Alternative forms of a gene:
A
allele
3
Q
The alleles present in the genome
A
genotype
4
Q
How the alleles are expressed by the individual to look a certain way:
A
phenotype
5
Q
When both alleles an individual has are different:
A
heterozygote
6
Q
When both alleles an individual has are the same:
A
homozygote
7
Q
The allele that is NOT visible in the phenotype of a heterozygote:
A
recessive
8
Q
The allele that IS visible in the phenotype of a heterozygote:
A
dominant
9
Q
The chromosomal pairs 1-22:
A
autosome
10
Q
The chromosome pair 23
A
sex chromosomes
11
Q
The method by which chromosomes determine the genetic sex
A
sex determination
