1. In a certain species of flowering plant, the blue allele B is dominant to the white allele, b. A student carried out a cross between a blue flowered plant and a white flowered plant. When planted, the 172 seeds that were produced from the cross matured into 92 plants with blue flowers and 75 plants with white flowers. Calculate the chi squared value for the null hypothesis that the blue flowered parent was a hybrid for the flower color gene. 2. Describe the effect of nondisjunction. 2/5 Daily Catalyst Pg. 78 Energy
Transcript
1. In a certain species of flowering plant, the blue allele B is dominant to the white allele, b. A student carried out a cross between a blue flowered plant and a white flowered plant. When planted, the 172 seeds that were produced from the cross matured into 92 plants with blue flowers and 75 plants with white flowers. Calculate the chi squared value for the null hypothesis that the blue flowered parent was a hybrid for the flower color gene.
2. Describe the effect of nondisjunction.
2/5 Daily Catalyst Pg. 78 Energy
2. Describe the effect of nondisjunction. The effect of nondisjunction is homologous chromosomes
fail to separate which can lead to multiple chromosome sets in one cell or lack of chromosomes in another cell.
2/5 Daily Catalyst Pg. 78 Energy
Daily Catalyst Class Business Blood Type Lab Energy notes Homework: Read/outline concept 9.2 (page. 165-167)
and complete concept check 9.2 on page 79.
2/5 Class Business Pg. 78 Energy
Finish the blood type lab Time: 15 minutes
WE WILL BE able to construct explanations of the mechanisms and structural features of cells that allow organisms to capture, store
or use free energy.
2/5 Objectives
Living cells require transfusions of energy from outside sources to
perform their many tasks.
Overview
The giant panda obtains energy for its cells by eating plants and some animals feed on
other organism that eat plants.
Overview: Life Is Work Living cells
How do cells harvest the chemical energy stored in organic molecules to make ATP?
How are photosynthesis and cellular respiration linked to one another?
Light energy
ECOSYSTEM
CO2 + H2O
Photosynthesisin chloroplasts
Cellular respiration
in mitochondria
Organicmolecules
+ O2
ATP
powers most cellular work
Heatenergy
Organic compounds must be broken down with the help of enzymes to release energy. Some of the energy will be used to do work,
the rest is dissipated into heat. Cellular Respiration is the most efficient
catabolic pathway.
Concept 9.1: Catabolic pathways yield energy by oxidizing organic
fuels
Key Point #1: Catabolism- Break down complex molecules into simpler forms and
release energy Exergonic
EX-exit (heat exits the system)
Catabolic Pathways and Production of ATP
Cellular respiration Is the most prevalent and efficient catabolic pathway Carbohydrates, fats, and proteins can all be processed
(as fuel), but we will focus on glucose.
Catabolic Pathways and Production of ATP
The infamous cellular respiration equation
6O2 C6H12O6 6CO2 6H2O ATP
Catabolic pathways yield energy How? Key Point #2: The transfer of electrons in reactions
release energy stored in organic molecules and this energy is used to make ATP (yes, more energy) .
Redox Reactions: Oxidation and Reduction
Key Point #3: Oxidation-reduction reactions involve electron transfers. AKA Redox rxns
The Principle of Redox
1. In corn (Zea mays), purple kernels (R) are dominant to yellow kernels (r). Cobs from the offspring of a cross between a purple plant and yellow plant were used in a lab. A student counts 329 purple and 299 yellow kernels on one cob. Calculate the chi-squared value for the null hypothesis that the purple parent was heterozygous for purple kernels. Give your answer to the nearest hundredth.
2. A population of butterflies found in Madagascar is polymorphic. There are two varieties of the coloring. The trait for a yellow stripe on the wing is dominant over having no stripe. In recent years the island was struck by several powerful storms and the butterfly population was drastically reduced. Now the population is in Hardy-Weinberg equilibrium, and the trait for having no stripe on the wing is 21% of the population. What will the frequency of the allele for no stripe be next year?
2/6 Daily Catalyst Pg. 78 Energy
Mini energy test on Thursday Review packet over Mardi Gras break Quiz #19 on Tuesday Interims
Extra Credit due Monday
2/6 Class Business Pg. 78 Energy
Daily Catalyst Class Business Finish energy notes Glycolysis notes Timed 10 (12:50) Homework: Read/outline concept 9.3 (page. 165-167)
and complete concept check 9.3 on notebook page 80.
2/5 Agenda Pg. 78 Energy
WE WILL BE able to construct explanations of the mechanisms and structural features of cells that allow organisms to capture, store
or use free energy.
2/6 Objective
KP#3 continued… OIL RIG
Oxidation A substance loses electrons, or is oxidized OXIDATION IS LOSING (OIL)
Reduction A substance gains electrons, or is reduced REDUCTION IS GAINING (RIG)
Redox Mnemonic
Example
Examples of redox reactions
Na + Cl Na+ + Cl–
becomes oxidized(loses electron)
becomes reduced(gains electron)
• Key Point #4:• The electron donor is the reducing agent because it
caused reduction (gain of electron).• The electron acceptor is the oxidizing agent
![[PPT]PowerPoint Presentation - · Web view... (B – non-blue eyes, b – blue eyes) BB = non-blue eyes Bb = non-blue eyes bb = blue eyes Incomplete Dominance – Neither allele is](https://static.documents.pub/doc/80x56/5aae9c247f8b9a190d8c559f/pptpowerpoint-presentation-view-b-non-blue-eyes-b-blue-eyes-bb.jpg)
