Genetics Unit Quiz 04/20/2012
Combination of genes in an organism
The inherited combination of alleles
Having two different alleles for a trait
Having two identical alleles for a trait
An organism with two dominant or two recessive genes for a trait
An organism that has two different alleles for a trait
Describes a trait that covers over, or dominates, another form of that trait
Trait of an organism that can be masked by the dominant form of a trait
Physical appearance of an organism
A graphic used to predict the results of a genetic cross
The sex cells of an organism
A strong likelihood or chance of something happening
The sex chromosome found in men and women; females have two x chromosomes (XX), males have one x and one Y(XY)
The sex chromosome found only in males. When paired with an X chromosome from the mother, it produces a male child.(XY)
A threadlike strand in the nucleus that controls cell
activity and carries genetic material to pass traits to offspring. Humans have 23 pairs of chromosomes.
The reproductive process that involves only
one parent and produces offspring that are identical to the parent.
The reproductive process that involves two
parents who combine their genetic material to produce a new
organism, which differs from both parents.
A fertilized egg.The result of sexual reproduction when each parent contributes half of the DNA necessary for the offspring
Transfer of pollen from the male reproductive structure to the female reproductive structure
Human Genome Project
First detailed map of every gene in the human ( approximately 20,000-25,000 genes); focus-to reverse human disease
Distinctive characteristics or behavior traits of parents or other relatives
Specific characteristic that varies from one individual to another
Basic building blocks of heredity which consist of DNA
An alternate form that a gene may have for a single trait; can be dominant or recessive
The study of how traits are inherited through the actions of alleles
Transmitted through genes from parents to offspring.
the young of a person, animal or plant
Father of Genetics who studied sexual reproduction in pea plants.
Deoxyribonucleic acid, the material that contains the information that determines inherited characteristics
Sex Linked Trait
A trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chromosome in humans
The classification of being male or female