Draw a cladogram with our lab fish and lampreys....Biology 1. Organism of the Day 5 2. Continue Fish...
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1 Organism of the Day: Lamprey Adults physically resemble eels, in that they have no scales, and can range anywhere from 13 to 100 centimetres (5 to 40 inches) long. Lacking paired fins, adult lampreys have large eyes, one nostril on the top o the head, and seven gill pores on each side of the head. The unique morphological characteristics of lampreys, such as their cartilaginous skeleton, suggest they are the sister taxon (see cladistics) of all living jawed vertebrates, and are usually considered the most basal group of the Vertebrata. Parasitic lampreys feed on prey as adults by attaching their mouthparts to the target animal's body, then using their teeth to cut through surface tissues until they reach blood and body fluid. Although attacks on humans rarely occur. Lampreys provide valuable insight into the evolution of the adaptive immune system, as they possess a convergently evolved adaptive immunity with cells that function like the T cells and B cells seen in higher vertebrates. Lamprey leukocytes express surface variable lymphocyte receptors (VLRs). Northern Lampreys (family Petromyzontidae) have the highest number of chromosomes (164174) among vertebrates. Pouched Lamprey larvae also have a very high tolerance for free iron in the body, and have welldeveloped biochemical systems for detoxification of the large quantities of these metal ions. Draw a cladogram with our lab fish and lampreys.
Transcript of Draw a cladogram with our lab fish and lampreys....Biology 1. Organism of the Day 5 2. Continue Fish...
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Organism of the Day: Lamprey
Adults physically resemble eels, in that they have no scales, and can range anywhere from 13 to 100 centimetres (5 to 40 inches) long. Lacking paired fins, adult lampreys have large eyes, one nostril on the top of the head, and seven gill pores on each side of the head. The unique morphological characteristics of lampreys, such as their cartilaginous skeleton, suggest they are the sister taxon (see cladistics) of all living jawed vertebrates, and are usually considered the most basal group of the Vertebrata. Parasitic lampreys feed on prey as adults by attaching their mouthparts to the target animal's body, then using their teeth to cut through surface tissues until they reach blood and body fluid. Although attacks on humans rarely occur.
Lampreys provide valuable insight into the evolution of the adaptive immune system, as they possess a convergently evolved adaptive immunity with cells that function like the T cells and B cells seen in higher vertebrates. Lamprey leukocytes express surface variable lymphocyte receptors (VLRs). Northern Lampreys (family Petromyzontidae) have the highest number of chromosomes (164174) among vertebrates.Pouched Lamprey larvae also have a very high tolerance for free iron in the body, and have welldeveloped biochemical systems for detoxification of the large quantities of these metal ions.
Draw a cladogram with our lab fish and lampreys.
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Biology1. Organism of the Day 52. Continue Fish Lab 10
Stain Gels (5 minutes work time 60 minute wait)Destain Gels (5 minutes work time end of week wait)
3. Review Mystery Question4. Evolution Video 305. 19.1 Notes/19.1 HomeworkAnnouncementsDue Today: Continue work on Fish Lab/Read 18.3
Due Thursday/Friday: Continue work on Fish Lab, Read 19.1 and Answer Questions 15
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11. After fixing, pour off the gel fixative and add sufficient BioSafe Coomassie stain tocover the gel and leave to stain on a rocking platform for 2 hours to overnight. Multiplegels can be stained in the same container.
12. After staining, pour off the stain and rinse the gel with distilled water and then destainthe gel on a rocking platform overnight with at least 3 changes of water. Note: youprobably will not see any bands on the gel when you begin to destain. The bands willdevelop slowly as the gel destains. Destain until you see a nice contrast between theprotein bands and the gel background.
Stain/Destain Gels
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What Darwin Never Knew Starthttp://www.youtube.com/watch?v=AYBRbCLI4zU
First 25 minutes...
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19.1 Fossil RecordI. Fossils and Ancient Life
A. Fossil
B. Types of Fossils
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19.1 Fossil RecordI. Fossils and Ancient Life
C. Fossils in Sedimentary Rock
D. What Fossils can Reveal
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II. Dating Earth's History
A. Relative Dating
Index Fossils
B. Radiometric Dating
Half Life
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III. Divisions of Geologic Time
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Groups
Group 1 Group 5
Ollie G. Davidson Elanor
Niehaus Natalya Frieda Rory
Magrini Cole Vchulek Lauren
Lant Caroline
Group 2 Group 6
Sullivan Jake Brown Margaret
Dalton Connor Fabert Emma
Daniels Carter Frawley Isabella
Nowjack Larissa
Group 3 Group 7
Butler Myron Hobbs Robert
Hodges Jackson Olalia Caleb
Dinniman Zachary Seltzer Georgia
Coryell Kamryn
Group 4 Group 8
McCann Cristen Swindle Brandon
Miller Truman Grele Ari
Ware Karen Weaver Chaney
Cummings Lauren
Period 3
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GroupsGroup 1 Group 5
Taylor Parker Marcus Glynnis
Yalung Andrew Merillat Morgan
Mead Angeline Vitale Olivia
Group 2 Group 6
Vacca Conner Hamilton Bryce
Goon David Lashmet Sabrina
Wise Kailyn Viele Elizabeth
Wienkers Lindsay Leigh Abigail
Group 3 Group 7
Osborne Breckin Bucy Ana
Samuels Sarah Dassel Quinn
Schardein Cole DeBolt Lucinda
McWilliams Alexandra Markowitz Jessica
Group 4 Group 8
McMahon Shaine Lehotsky Chase
Abby Leigh Allen Natalie
Miller Talbot Bowman Matthew
Olson Sonia
Period 5
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GroupsGroup 1 Group 5
Carson Sophie Erickson Lars
Christean Cassandra Friday Angelic
Cole Madeleine Godfrey Oliver
Comstock Annie Greer Jade
Group 2 Group 6
Holloway Isaac Ragsdale Albert
Ieropoli Ryan Riely Garret
James Alyssa Rosenkotz Mira
Larsen Alexander
Group 3 Group 7
Lee Joseph Weyand Lucas
Lindquist Britt Beatie Natalie
Maasen Ciana Burzycki Lucas
Mander Sienna Carlisle Aidan
Group 4 Group 8
McGee Erin Swanson Blake
Mellin Zachary Thomas Reed
Munter Caitlyn Tibbens Kathryn
Nimb Erik
Period 6
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Exit Question:
Reminders
Define halflife.
Due Thursday/Friday: Continue work on Fish Lab, Read 19.1 and Answer Questions 15
