Genetics
IB Biology Genetics
IB Biology Genetics
Set of flashcards Details
| Flashcards | 50 |
|---|---|
| Language | English |
| Category | Biology |
| Level | Other |
| Created / Updated | 11.03.2013 / 18.05.2018 |
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What is the genotype?
The alleles of an organism
What is the phenotype?
The characteristics of an organism
What is a dominant allele?
An allele that has the same effect on the phenotype no matter if it is hetero- or homozygous
What is a recessive allele?
An allele that only has effect if it is present in homozygous state
What is a codominant allele?
Pairs of alleles that both affect the phenotype when in a heterozygote
What is the locus?
The specific region on the chromosome where the gene is found
Define homozygous
Having two identical alleles of a gene
Define heterozygous
Having two different alleles of a gene
What is a carrier?
A heterozygous individual bearing an unexpressed defective gene
What is a test cross?
Testing a suspected heterozygote by crossing it with a known homozygous recessive
