Genetics 1
Genes code for these -physical characteristics or ...
Traits
This kind of gene always shows itself over a recessive gene.
Dominant Gene
The language you speak is influenced mostly by...
the environment you grow up in
a random change in an organism’s DNA
mutation
DNA is located where in the cell?
The Nucleus
The passing of traits from parent to offspring is called.
Heredity
Organisms that have two of the same genes are called...
Homozygous
Type of reproduction where offspring are identical to the parents
Asexual
An organisms physical appearance, such as having a pointy nose
Phenotype
This type of reproduction makes identical copies.
Asexual
Chromosomes are made up of _______.
DNA
Organisms that have two different genes for the same trait are called...
heterozygous
One of two or more forms of a particular gene (the options for a gene).
Allele
The two letter code that describes an organisms genes. (AA or Aa)
Genotype
What kind of reproduction introduces genetic variety?
Sexual
Where are chromosomes located?
Nucleus
A tool scientists use to predict what offspring may look like...
Punnett Square
Gene that is hidden when the dominant gene is present
Recessive
What percent of the DNA of the offspring comes from the Mom.
50%
What cell division results in 4 unique cells?
Meiosis
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 would be their children’s possible genotypes?
RR, Rr, rr
A structure made of coiled DNA that transfers hereditary information to the next generation (Comes in pairs)
Chromosome
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%
What type of cell division results in two identical cells?
Mitosis