a.) determine his genotype.
b.) What could be the genotypes of the Emperor and Empress?
c.) Is it possible that each daughter could have been a carrier?
The Pedigree makes use of diagrams showing the ancestral relationships and transmission ofgenetic traits over several generations in a family. It describes the mode of inheritance of a trait. It also calculate the probability of occurrence an affected offspring in a given cross
The individual in the pedigree that led to the construction of the pedigree is known as the proband. For example, a couple consults a medical geneticist because they have an offspring who is afflicted with a disease and they want to find out the mode of transmission of this disease.When the medical geneticist constructs the pedigree, the offspring will be labeled as the proband. Through the pedigree, the probability of having other affected children may be determined.
Symbols for creating pedigrees
I. Male (square) vs female (circle)
II. Affected (shaded) vs unaffected (unshaded) individual
III. Marriage/mating line (line connecting mates) vs. sibship line (line connecting siblings)
IV. Fraternal twins (one birth line branching out into the individual twin) vs. identical twins (same as fraternal twins but with a horizontal bar connecting the branches)
V. Generation (Roman numerals) vs. individuals in the same generation, counting left to right (Hindu- Arabic numerals)
VI. Proband (arrow)
This is a level of assessment and analysis. After lessons on Genetics and Inheritance. Human cell analysis. Test your knowledge on DNA, RNA, and Protein molecular structure and function.
Determine structures and the functions of each molecule and compound. Understand the corresponding uses and their importance in the inheritance or heredity of children in the family and in the next generations.
Lesson Review on BioMolecules : Structure and Function
Lesson Review on Biomolecules : DNA Replication and Protein Synthesis
BioMolecules Practice Quiz 2 mirror site BioMolecules Practice Quiz 2
Genetics Disorders Practice Quiz
1. Law of Dominance (First Law):
The law of dominance states that when two alternative forms of a trait or character (genes) are present in an organism, one factor expresses itself and is called dominant, while the other that remains masked is called recessive.
2. Law of Segregation (Second Law):
It says that the alleles that make up a gene separate from each other, or segregate, during the formation of gametes.
3. Law of Independent Assortment (Third Law):
This law states that when two pairs of traits are combined in a hybrid, segregation of one pair of character is independent of the other pair of characters at the time of gamete formation.
MonoHybrid Cross
DiHybrid Cross , Exercise
Gregor Mendel performed crosses in which he followed the segregation of two
genes. These experiments formed the basis of his discovery of his second law,
the law of independent assortment.
A Dihybrid cross is a cross between two parents that differ by
two pairs of alleles (AABB x aabb)
The dominance relationship between alleles for each trait was already known
to Mendel when he made this cross. The purpose of the dihybrid cross was to
determine if any relationship existed between different allelic pairs.
Let's now look at the cross using our gene symbols.
This is a higher level of assessment and analysis. After lessons on Human cell analysis, Genetics and Inheritance, Human Traits and Development. Understanding the corresponding uses and their importance in the inheritance or heredity of children in the family and in the next generations.Test your knowledge on DNA, RNA, and Protein molecular structure and function. Determine structures and the functions of each molecule and compound. Analysis if synthesis of new protein molecules from amino substances.
Lesson Review on BioMolecules : Structure and Function
Lesson Review on Biomolecules : DNA Replication and Protein Synthesis
BioMolecules Practice Quiz 1
Genetics Disorders Practice Quiz