Genetic inheritance

Genetic inheritance is important to the evolution of life. It makes us who we are today. How each of our family is different from another but still the same in other ways. Each parent passes down a characteristics which their parents pass down to them and they will pass down to their children in the future and so on.

What do these terms mean?

Genotype-refers to the genes of the individuals
Phenotype-refers to the physical characteristics
Allele-Alternative form of a gene; allele occurs at the same locus on homologous chromosomes.
Dominant allele- Allele that exerts its phenotypic effect in the heterozygote; it masks the expression of the recessive allele.
Recessive allele- Allele that exerts its phenotypic effect only in the homozygote; its expression is masked by a dominant allele.

This is my dragon at the end of the assignment, both looking exactly the same but with different type of phenotype. In order to get the dragons to look the same I had to change a few chromosome alleles












This is scenario 5. The first three offspring look the same but the last one the fourth looks different. The first one is (LL), second (Ll), third (Ll), and fourth (ll). So the First three are heterozygous long-winged fly and the fourth fly is not













Each parent gives it own characteristic to his or her children. If the parents are heterozygous each of their children has a 75% chance of having their parent’s phenotype and 25% of having the recessive phenotype. I remember back in middle school doing a project with our families whether or not we could roll our tongues. Since my older sister could not roll her tongue that meant that one of my parent’s could not either. At the end it was my dad who could not roll his tongue. My mom, sister and I could roll our tongues. There are other characteristics we could all try to conclude: if we have long fingers, blue or green eyes, tall or short or brown or black hair.
The punnett square is a great way to determine every possible combination of gametes.

The Lab:
To the two labs about genetic of a dragon and fruitfly and to come up with the correct outcome.
In Conclusion:

Knowing where we came from, what genes were passed down to others is very important. It lets everyone know what genes they can pass down to their future children. There some families that have genetic disorders that can be passed down to them and knowing what is in your own gene is important.