Before we got our tests back, we did a mini lab on natural selection. After getting our tests back and going over them, we then went over the information before launching into a unit about evolution.
This week is spent studying in preperation for the test -wish me luck!
This week, we learned about how DNA replicates, and the process of central dogma. Specifically, we learned about transcription, and touched on translation. I hope I understand it in time for the quiz!
This week we had a genetic test over the material we learned last week. I hope I did well!
Happy April Fools!! This week we continued the genetic information, starting with learning about blood types. Then we got to blood type ourselves – the needle really wasn’t that bad. We also had quiz retake options.
We took a quiz on the genetics we learned this week, then began a case study about the Mona Lisa Molecule to learn more abou DNA. Next week, we will continue the fruit fly lab.
Our first week back after interim and spring break, we are kicking things off with a bang. We are starting a lab about fruit flies to learn more about x-linked chromosomes! Yay!
We finally finished genetics-right before interim. We will be going on trips next week-super excited to head out to California!!
In bio, we got back our tests and were allowed to retake it next week. We also started a new unit on genetics, and had a taste-testing activity. We tested how strong our tastebuds were by using strips of PTC, Thiourea, and Sodium Benzoate.
ScienceDaily has released an article that asks an interesting question: Do Fish Survive Streams in Winter? Anyone who has been somewhere very cold during the winter knows that most small ponds and rivers tend to freeze over – or have large chunks of ice. So how do fish survive without freezing to death – if they do at all – considering they remain in the freezing rivers during the cold months? A team of scientists tagged a fleet of fish to follow during this time. They discovered that “tracked sculpins and young trouts drastically decreased in mid-winter and was low until the ice broke up by which time the number increased again.” Given how the tags were not sensitive to ice-thickness, this could mean they lost the signal, or the young fish were not able to survive the winter, and more were born during the warmer months. They also discovered that health was most important. This makes sense; after all, you are unlikely to survive a harsh winter if you are already sickly as a fish. I also found it strange how the tag signal was ice-thickness dependent; the thicker the ice, the weaker the signal. I also am curious about the young fish, and why they were so hard to find. I also wonder: did they survive?