Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
Monohybrid cross (single.factor cross) |
BB parent and bb parent making four Bb kids. 2 mono make 4 hybrid. |
|
Mendl's Laws of Inheritance: historic study on what? What year did the study happen? |
pea plants. 1856 to 1864. His work was not appreciated until the 1900 after his death. |
|
Mendelian Inheritance: What is it? |
Inheritance pattern of genes that segregate and assort independently |
|
Mendl's Laws of Inheritance: What is simple dominance? |
Simple mendlian inheritance. One trait is completely dominant over the other. |
|
Garden Pea, Pisum sativum: Advantages properties of studying this are...(3) |
readily available characters or traits. Normally self fertilizing. Ease of cross fertilization or hybridization. |
|
Single factor cross is also known as? What does this mean? |
monohybrid cross. Experiment followed the variants of only one trait. |
|
Conclusions of Pea stuff? (3) |
recessive trait is masked by dominant trait. Every individual has 2 genes for a characteristic. Each sperm or Egg carries only one Allele (trait) |
|
Mendel's first Law: What is the law of Segregation? (2) |
Diploid organisms inherit 2 genes (alleles) for each trait. These genes are separated from each other during meiosis. |
|
Genotypes can be represented by three different things. Abbreviations and scientific terms. |
TT : Homozygous Dominant. tt : homozygous recessive. Tt : Heterozygous. |
|
Phenotypes are what? How many types can there be? |
Characteristics that are the result of gene expression. Example: tall or short. Only two types. |
|
What goes on the sides of the punnett square? |
Male and Female gametes |
|
How do you determine the ratio of Genotypes? |
TT : Tt : tt represents 1 : 2 : 1. Each genotype is represented in the ratio. This is usually a 3 part ratio. |
|
How do you determine the ratio of Phenotypes? |
Using the above from genotypes TT and Tt will both be tall. tt will be short. So you've got 3 tall and one short. the ratio is 3 : 1. this will always be a 2 part ratio. |
|
Testcross |
This is inferring data about the parents by examining the traits of the young. If a short is born from 2 talls then they both must have been Tt. Children are all TT then parents were TT |