The abbreviation for deoxyribonucleic acid is _____.
DNA
A member of a gene pair that determines a specific trait is a(n) ______________.
allele
___________________ is known as the Father of Genetics.
Mendel
A _______________ has genes that are different for a trait, such as Tt.
hybrid
The actual gene makeup of an organism is its __________________.
genotype
________________ are physical characteristics of an organism that are passed down from one generation to the next.
traits
__________________________________________is a condition in which neither of the two genes in a gene pair masks the other.
incomplete dominance
_____________________ are rod-shaped structures found in the nucleus of every cell in an organism. A trait is expressed when two different genes for the same trait are present.
chromosomes
A ________________ trait is expressed when two different genes for the same trait are present.
dominant
The physical appearance of a trait is called the ________________.
phenotype
Mendel experimented with __________________ to learn about genetics.
pea plants
A _________________________ gene pair consists of two dominant alleles or two recessive alleles.
homozygous
According to the ______________________________________ one gene from each gene pair goes to each 47 50 23 sex cell.
law of segregation
The traits of an organism are controlled by its ____________.
genes
A ________________________________________________ is a chart used to show the possible gene combinations in across between two organisms.
Punnett Square
A ________________________________ gene pair that consists of a dominant allele and a recessive allele
heterozygous
The ___________________________ generation is the offspring of the P, or parental, generation. 44 45
first filial
18. A __ __ __ __ __ __ __ __ __ __ is a scientist who studies heredity.
geneticist
A __ __ __ __ __ __ __ __ __ trait seems to disappear when two different genes for the same trait are present.
recessive
Organisms inherit genes in pairs, one from each _______________.
parent
__ __ __ __ __ __ __ __ is the study of heredity.
genetics
The __ __ ______ __ __ __ __ __ __ __ __ __ __ states that each gene pair is inherited independently of the gene pairs for other traits.
law of independent assortment