Term
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Definition
| Chromosomes that are similar in size, shape, and genetic material |
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Term
| The gene for a particular trait contributed by one parent is on one chromosome in a __________ and the gene contributed for the same trait by the other parent is on the other _______________ ______________ |
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Definition
pair
homologous chromosome |
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Term
| If the matching genes code for different characteristics of a trait, such as tall height and short height, the genes are called ________________ |
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Definition
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Definition
if the trait that is expressed
capitol letter |
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Term
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Definition
if the trait is not expressed
lower case letter |
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Term
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Definition
| an organism that has two dominant or two recessive alleles for a trait BB or bb |
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Term
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Definition
| an organism that has one dominant and one recessive allele for a trait Bb |
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Term
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Definition
the alleles that an organism inherits from its parents make up the ___
bb cc Bb |
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Term
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Definition
the form of the trait the organism displays is called its _________
blue eyes brown eyes |
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Term
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Definition
Father of Genetics
studied pea plants |
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Term
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Definition
| is the same thing as homozygous |
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Term
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Definition
| is the dividing of alleles from each parent into separate games |
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Term
| Law of independent assortment |
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Definition
| When gametes are made the genes for traits found on different chromosomes separate independently. BbTt = BT, Bt, bT, bt |
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Term
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Definition
| is a deliberate genetic cross that can be used to determine whether a plant or animal is homozygous or heterozygous for a trait |
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Term
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Definition
neither allele is dominant over the other
you get a blend (pink)
RR x R'R' = RR' |
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Term
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Definition
both alleles are expressed in the offspring
ex: BB x WW = BW (black and white) |
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Term
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Definition
more than 2 possible alleles for the trait exist
ex: blood type problems
A, B, AB or O
Three alleles for blood type IA, IB, io |
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Term
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Definition
traits that are controlled by two or more genes
ex: human height, human eye color, corn height |
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Term
| What are different forms of a gene called? |
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Definition
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Term
| An example of a phenotype would be___ |
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Definition
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Term
| What word describes an organism in which two alleles for a trait are different? |
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Definition
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Term
| Crossing a purebred, purple-flowered plant with a purebred, white - flowered plant can be symbolized with __? |
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Definition
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Term
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Definition
| science that involves studying patterns of inheritance |
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Term
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Definition
| is a diagram used to identify possible combinations of dominant and recessive alleles in offspring |
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Term
| How many types of chromosomes do we have? |
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Definition
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Term
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Definition
determine the gender of the individual 23rd pair
XX = female
XY = male |
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Term
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Definition
determine the characteristics that do not include gender
1st 22 pairs of chromosomes |
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Term
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Definition
maeans that the genes for these traits are carried on the sex chromosomes
ex: color blindness, hemophilia
XcY XCY XCXC XCXc XCXc |
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Term
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Definition
is a family record that shows which members inherits a specific trait over several generations
Circle = female
Square = male |
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