Genetics 1
A gene will code for a specific, observable, or measurable characteristic of an organism. They can be inherited. What are they?
Traits
This kind of gene always shows itself over a recessive gene.
Dominant Gene
The language you speak is a) a genetic trait or b) an environmental factor?
the environment you grow up in gives you your language
a random change in an organism’s DNA
mutation
The passing of traits from parent to offspring is called.
Heredity
Organisms that have two of the same alleles (genes) are called...
Homozygous
Type of reproduction where offspring are identical to the parents; usually but not always occurs in single-celled organisms
Asexual
An organisms observable physical appearance or characteristic, such as having a pointy nose
Phenotype
Chromosomes are made up of strands of code called _______.
DNA
Organisms that have two different genes for the same trait are called...
heterozygous
These represent different versions of a gene that can produce variations in inherited traits, such as eye color or blood type (one from Mom and one from Dad)
Allele
The two letter code that describes an organisms genes.
Genotype
Where are chromosomes located?
Nucleus
A tool scientists use to predict what percentage of offspring carry a trait...
Punnett Square
Gene that is hidden when the dominant gene is present
Recessive
Father of Genetics
Gregor Mendel Abbot of the Augustinian Monastery of St. Thomas in Brünn (now Brno, Czech Republic), a position he held from 1868 until his death in 1884. Before becoming abbot, he was a friar and worked as a teacher of physics and natural history at the Brünn Modern School
Having Freckles (F) is dominant over not having Freckles (f). If a person who is heterozygous has children with a person who is also homozygous recessive, what is the probability that their children will have Freckles?
50%
Right-handedness (R) is dominant over left-handedness (r). If a person who is heterozygous has children with a person who is also heterozygous, what percentage of their children would be left handed?
25%
A structure made of coiled DNA that transfers hereditary information to the next generation; Comes in pairs
Chromosome
DOUBLE POINTS FOR STANDARD CLASS AND NO DEDUCTION IF WRONG: If one parent is Blood Type AB, and the other parent in type O, what are the chances that they have a child that is type O.
0%
One parent that is IA IB *CANNOT* have a child that is ii (oo) - if you don't HAVE it, you can't GIVE it.