a) 50 % because when the loci are at opposite ends of a chromosome they behave as if they were on different chromosomes.
| Beginning with 100% | recombination results in 50% | and 50% |
The resulting cross gives results almost identical to a normal Mendelian dihybrid cross, which can be symbolized as follows:
| recombinant genotypes |
b) You would assume that these genes were on separate chromosomes since they appear to segregate independently even though they are linked.
Use of our material:
This activity was created by Kelly Riedell for students in Biology class at Brookings High School. We have worked very hard on activities, Powerpoints/games/worksheets, etc to make this a resource for our students. If you are using our materials, please give us credit for our efforts by listing us as a source with links to our site.
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BUILD -A-CELL GAME Students review by answering questions AND by practicing what parts look like and their location as they build their cell. |
AHEAD OF TIME:
1. Make a copy of the question cards. and cut them apart
You will need a set of question cards for each group of 4
I make the sets different colors so the cards don’t get mixed up.
2. Print out the Build a cell game parts sheets.
Copy the blank cell page onto colored paper (1 for each student)
Copy off the cell parts pieces onto clear transparency sheets, cut out, and place in
paper lunch bags. (1 lunch bag per game group with enough parts in it to make 4 cells.)
Using clear transparencies allows some cell parts to build on top of each other.
(Ex: nucleolus goes inside nucleus, ribosomes sit on top of Rough ER)
PLAY THE GAME:
Students play in groups of 3-4. Each group has a lunch bag with cell parts pieces and a deck of question cards. Each student has his/her own blank cell score sheet. Students play by taking turns answering questions. If they answer correctly, they get to pick a cell part from the lunch bag and place it on their cell scorecard in the correct place. If they get it wrong they don’t get a part and the next student gets a turn.
First student to get all 9 cell parts into their cell is the winner.
BIOLOGY SAFETY CONTRACT
I, ____________________________ have read the safety rules for the biology classroom and lab and agree to follow all of the safety rules set forth in this contract. I realize that I must obey these rules to ensure my own safety, and that of my fellow students and instructors. I will cooperate to the fullest extent with my instructor and fellow students to maintain a safe lab environment. I will also closely follow the oral and written instructions provided by the instructor. I am aware that any violation of this safety contract that results in unsafe conduct in the laboratory or misbehavior on my part, may result in being removed from the laboratory, detention, receiving a failing grade, and/or dismissal from the course.
*Failure to have goggles at the beginning of any lab involving heat, chemicals or glassware (except microscopy) will result in removal from the room and a grade of “0” for the lab. The removal is required by the State of Arkansas.
I do/do not wear contact lenses.
I do/do not have a medical condition that could result in the need for emergency medical attention (explain here if you do).
Signed (student) _________________________________________Date ___________
_______________________________________________________________________________
Dear Parent or Guardian:
We feel that you should be informed regarding the school’s effort to create and maintain a safe science classroom/laboratory environment. With the cooperation of the instructors, parents, and students, a safety instruction program can eliminate, prevent, and correct possible hazards.
You should be aware of the safety instructions your son/daughter will receive before engaging in any laboratory work. Please read the list of safety rules above. No student will be permitted to perform laboratory activities unless this contract is signed by both the student and parent/guardian and is on file with the teacher, a safety test is passed with a 70% or greater, and a classroom map is constructed by the student.
Your signature on this contract indicates that you have read the Student Safety contract, are aware of the measures taken to ensure the safety of your son/daughter in the science laboratory, and will instruct your son/daughter to uphold his/her agreement to follow these rules and procedures in the the laboratory.
Signed (parent) ________________________________Date ___________
Day phone __________________ Convenient hours ___________________
Evening phone _________________Convenient hours __________________
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Biomes of the World Solution
T + + + C D A R + R L + T + + + S + + E I E B E + A + U + + + + E S + M T T I + D E N + + + + E R U E A O + O I M D H + + R + S O W R + I + T O R E R T + N + H F C O + B R I A R E + O + S + + N A V + E B C B C C + E + + + + I R I T + + I U + R S A V A N N A N N + + V D F E N I R A M + + R I M + O O G R A S S L A N D + A V O R R S U O U D I C E D G + + O E P + + + + + + + + I + + + + R + + + + + + + + A + + + + + + E + + + + + + T + + + + + + + + (Over,Down,Direction) ABIOTIC(7,1,SE) BIOME(12,7,N) BIOTIC(10,6,NW) CARNIVORE(7,6,SE) CONSUMER(1,8,NE) DECIDUOUS(9,12,W) DESERT(6,1,SW) FRESHWATER(1,10,NE) GRASSLAND(1,11,E) HERBIVORE(14,4,S) INTERTIDAL(11,10,N) MARINE(7,10,W) OMNIVORE(13,11,NW) PRODUCER(15,12,N) RAINFOREST(10,10,NW) SAVANNA(3,9,E) TAIGA(7,15,NE) TUNDRA(13,1,S)
