The genetics lab was very interesting. I saw how changing one chromosome can completely change the look of a person or dragon in this case. I started out with a brown dragon that had four legs and no horns. I had to change the color, take the legs away and add horns. This lab was actually very easy to do and understand.
The punnett square lab I saw how the cross works. The cross is a table used to see the chances of a certain genotype or phenotype happening. This lab was a bit harder to do for me. It took me a couple of tries before I got the hang of how to come up with the type of flies each scenario was asking for. But when I did catch on it wasn't too hard. In the lab I came up with 3 long winged flies and 1 short winged fly. The long wings were the dominant feature.
Here are some terms that I learned in this lab:
Genotype - are just the different genes a individual has.
Phenotype - is the physical appearance of a person, for instance their eye color.
Allele - is on the same position on a chromosome but it affects it differently, for example having freckles or not having freckles.
Dominant Allele - is used in the cross table and is an upper case letter.
Recessive Allele - is also used in the cross table and is a lower case letter.
Cross - is the Punnett Square diagram. There are two letters on the top and two on the side and in the middle they make the offspring. It helps you understand the chances of offspring having or not having a trait.
Overall I really thought this lab was fun and interesting.
1 comment:
Hi Teresa,
Great labs! Especially your cell and dna, very creative! I have also had the same trouble with my life getting in the way of my classes. I wish I would of done this years ago when I had far less other obligations. Keep up the great work!
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