Genetics Test Flashcards.
to study (28 cards)
Who is considered the father of genetics?
Gregor Mendel
What is a genotype?
A genetic makeup of an organism.
What does homozygous mean?
Having 2 dominant or recessive alleles for a trait.
What is a phenotype?
A physical appearance of an organism.
What is homo mean?
Same type of alleles.
What does heterozygous mean?
A pair of 2 different types of alleles.
What does hetero mean?
Different.
Is homozygous purebred?
Yes.
Is heterozygous purebred?
No.
What does hybrid mean?
Different types of alleles.
What does purebred mean?
The same types of alleles.
What is a dominant allele?
A type of gene that masks over the other allele if it is present.
What is a recessive allele?
A type of allele that only expresses itself when paired with an identical allele.
What type of genotype is a dominant allele paired with a dominant allele?
Homozygous-Dominant.
What type of genotype is a dominant allele paired with a recessive allele?
Heterozygous-Dominant.
What type of genotype is a recessive allele paired with a recessive allele?
Homozygous-Recessive.
What is a simple pair of alleles?
A pair of alleles where only 1 allele expresses itself.
What is a incomplete/co-dominant gene?
A pair of alleles where both alleles express themselves by blending.
2
Nucleus
Cell
DNA
Chromosome.
Gene.
What traits are passed down and are not influenced by an organism’s surroundings?
Inherited traits.
