Today was a complete work day on the Pedigree project. It is my expectation that the rough draft is complete by the end of the class period. The full final draft is due next Thursday (10/19) at the beginning of class.
Today we discussed one way to represent a visual for inheritance of traits, a pedigree. A pedigree for a family is basically a family tree. We discussed three types of inheritance patterns: autosomal dominant, autosomal recessive, and sex-linked inheritance.
The mandatory project for this nine weeks, The Pedigree Project, was assigned. Students were given the story of a fictitious family and were tasked to create a pedigree for them. They were then given a trait to trace through this family and then determined the inheritance pattern for the trait. All information for the project can be found under "First Nine Weeks" -> "Unit 3" and at the bottom of that page. Students were given a half work day to start the rough draft; if not done today, it is my expectation that it is done tomorrow towards the beginning of class.
HW: 270-271 (by Monday)
We discussed Non-Mendelian (traits that do not fall under Mendel's pattern of dominant vs. recessive) genetics today; discussing incomplete dominance, co-dominance, multiple alleles, polygenic traits, and sex-linked traits.
HW: pg 201-205
Also, do Punnett square practice parts 4-5
Today we began our discussion about Punnett squares and advanced Punnett squares, dihybrid crosses. These types of Punnett squares involve the probability of inheriting two different traits. The rest of class was work time for the Punnett square packet and notes for tonight.
HW: 208-216, 219; Punnett Square Packet Parts 1-3
Today we began by going over yesterday's test.
We then reviewed basic terminology regarding genetics, such as dominant/recessive, homozygous/heterozygous, and genotype/phenotype. We also discussed the importance of Gregor Mendel, the "father of genetics".
Use the DNA strand below to answer the following questions:
3' - TAC CCA GAT CGA TAT ATT - 5'
1. Create the strand of mRNA that would result after transcription (DNA to RNA; use the same beginning strand).
2. Use the genetic code chart (given Thursday) to determine what amino acids would be in this protein.
Today we reviewed protein synthesis from yesterday. Please see the powerpoint in the notes folder if absent.
We then did a lab activity called "The Mysterious Monster". Students were tasked with taking 7 DNA strands, converting them to mRNA, then to amino acids, and ultimately determining the traits that the DNA coded for. Students will then draw a monster that has the seven traits in question. The lab can be found in the Labs/Activities folder if absent (or if you lose yours). For absent students, you may use this set of DNA strands:
HW: 242, 245-247; cancer infographic (due Monday, 5pm)
Today we began class by reviewing the cell cycle and mitosis as a class and did a mini-lab where we looked at mitosis in an onion root tip (see Google classroom). For any students still having difficulties, please watch the videos below.
We then discussed how this process is controlled; all cells do not go through the cell cycle, nor do they do so at the same speeds. There are factors which control its timing, and if those factors go awry, bad things can happen, like cancer. The notes for this can be found towards the end of the Cell Cycle - Mitosis powerpoint in the "Notes/Lecture" folder under Unit 2.
HW: Finish Cell Cycle Book and study for tomorrow's quiz!!
Today we began class by taking a quiz over DNA Structure and Replication. We then discussed how a molecule as large as DNA can fit into such a tiny location, the nucleus. The video below helps explain.
We then worked on the Cell Cycle Flipbook. Students are to create a flip book (example seen below on the left) over the stages of the cell cycle. Directions for the booklet can be seen below (to the right), or are found in the documents folder in Unit 2, or are on Google classroom. This is due Tuesday.
HW: Egg Osmosis Lab Report (due Monday) and Cell Cycle Flipbook (due Tuesday). No notes!
All posts written by Samuel the cat in a catnip-induced haze. Forgive any spelling/grammatical errors. Do your homework or feel his wrath...