Biology Questions

Action Potential AP arises in presynaptic neuron CH gates open Causing IF Current spreads through Travels to Causes Nonmyelinated axons Leads to Located in IF gpening When next Myelinated axons End of presynaptic neuron Excitatory Postsynaptic Potential begins at Depolarization to 30mV Current spreads by

How do Hox genes provide evidence of common ancestry O A The order of Hox genes match the physical placement of body parts in all animals B Hox genes control where structures grow in all plants and animals O c The nucleotide sequences of Hox genes found in fossils are an exact match to modern species D The Hox genes of distantly related animals have identical nucleotide sequences

DNA sequences from an ancestral species and four modern species that evolved from it are shown below Common ancestor Cat Goldfish Pigeon Rhinoceros Based on these sequences which organism is most closely related to the common ancestor A Goldfish B Cat C Rhinoceros CGGTACAATTCA CCGTACTTTTGA CGCTACTATTGA CGGTACATTTGA CCGTACATTTAA D Pigeon

I relate to Erikson s autonomy versus shame and doubt This stage begins around 18 months when toddlers build self awareness At this stage toddles want to make their own choices themselves therefore parents must give the child space and offer support if needed If parents hoover their children and don t allow them the freedom or access to think for themselves a child will build shame and self doubt they will lack confidence and become relient of their parents Since I was my mom s first child she admits to having a lot fear of allowing me to do things that would make her uncomfortable so she would either do it for me or make me stop For a while I was anxious doing things because I was anxious that my mom would find out For example my mom did not allow me to walk alone in middle school She would talk about the dangers out in the real world when my friends wanted to walk to 711 I would want to join them but I would always become anxious that something would happen to me or that my mom would find out

A plant population has the following distribution of genotypes for flower color Genotype RR Number of 20 individuals Phenotype Dark red Rr O A 100 OB 30 O C 20 O D 50 50 Red What is the frequency of the Rr genotype rr 30 White

discussion 10 points possible due Mar 10 at 7pm Discussion Post A oard Posts 25 total e of your participation you will write 200 word minimum the readings as well as responding to at least one other post In want to see concrete examples where you critically reflect on This can include citing specific photographs and ers theoretical connections between different readings ideas or the author s own argument Please refer to my separate cussion posts for full details Posts are due by Sunday 6pm week There will not be an opportunity to post after the make sure you enter the due dates into your calendar now so n t miss them Keep in mind that our reading assignments will but not identical material to the weekly lectures I have me readings so they foreshadow the content we cover in lecture it is essential you do the readings prior to the lecture this form you ready to engage with lecture content in plates enabling quick stealth like exposures earning these machines the nick name of detective cameras One camera is mythically associated with amateur photography the Kodak Coined by George Eastman 1854 1932 a former bank employee from Rochester NY the Kodak name began as a camera model but quickly became a brand and company name that dominated the amateur market Introduced in 1888 the first Kodak was a simple 3 x 3 x 6 inch box camera weighing about 25 ounces including film It had a 57mm f 9 fixed focus lens and a barrel shutter that could make 100 circular images 2 inches in diameter For 25 a tidy sum at the time a Kodak came factory loaded with paperbacked Eastman s American Film ready for a user to point shoot advance film and shoot again Ninety nine more exposures later the roll was completed and the camera ready to ship back to the Eastman factory for processing and printing thus making what soon would be known as Eastman Kodak Co the first nationwide photofinishing business and sanctioning Rochester as a future a hub of photographic activity Contact prints from each negative and mounted on gilt edged chocolate brown

mixture of proteins by charge PCR SDS PAGE lon exchange chromatography Ammonium sulfate precipitation Question 2 1 point 4 Listen Determine the amount of ammonium sulfate needed to reach 37 saturation level if you have 55mL 11550 grams 11 55 grams 1155 grams

Q Sepharose beads in lon exchange chromatography are positively charged True False

In the protein isolation experiment what did we do to make the negatively charged proteins pass through the positively charged beads We used increases and decreases in temperature to build amplicons We used partial pressures to drive samples through the beads We used G forces to push the samples through the beads We used salts of increasing concentrations to release proteins from the beads

The density of the polyacrylamide will influence the speed and resolution of the proteins on the gel True False Question 6 1 point Listen Q Sepharose beads in lon exchange chromatography are positively charged True

Select the correct order of the basic steps of ion exchange chromatography Elution regeneration equilibrium sample application Equilibrium sample application elution regeneration Regeneration elution sample application equilibrium Equilibrium sample application regeneration elution

The detection method used in our experiment to verify isolation of proteins on the western blot is called Chemiluminescent Colorimetric detection Spectrum analysis Lepelveis

What is the name of the substrate that we used during western blotting to induce a color change BCIP NBT Sodium azide DNPH DCIP

What are the building blocks that make up proteins Monosaccharides Fatty acids Nucleotides Amino acids

Purple Sulfur PSB and Green Sulfur Bacteria GSB both use sulfide to support photosynthesis GSB tolerate higher sulfide levels than PSB How does that tolerance relate to where they congregate in the column Where would they be in relation to the Cyanobacteria and Desulfovibrio Put these three groups of organisms in order from top to bottom in the column Desulfovibrio Green Sulfur Bacteria Purple Sulfur Bacteria Cyanobacteria

Where in the column would you most likely find Cyanobacteria O Top of the column Middle of the column Bottom of the column Evenly dispersed throughout

Can you please write a current primary source article 2020 about antibiotic resistance in tuberculosis and point out three things

What is the relative movement on the thrust fault 60 miles east of Riverton 789 Kander Hermapolis Riverton A B A Block A has moved upwards relative to block B B Block B has moved upwards relative to block A Casper

Which of the following are the components of the vertebrate skull that can be traced back to early vertebrates chondral skeleton visceral skeleton dermal skeleton

Ichthyosaurs below are not dolphins which are mammals but they sure look like dolphins What common evolutionary pattern does this resemblance illustrate Cite several features visible in the figures below that support your discussion

Crocodiles are archosaurs O True O False

Referencing the figure below discuss the advantages of some of these gaits over others sprawling semi erect erect

Which reptile group had has en elongated fourth digit on the hand O lizards O turtles O crocodiles

Lizards and allied groups have a sprawling gait O True O False

Discuss a novelty of Maniraptors that facilitated yet better mobility compared to earlier Theropods Use the figure of Deinonychus as a prompt and be sure to reference at least one feature seen in it

Theropod dinosaurs had which of the following novelties compared to other dinsoaurs recurved teeth s shaped neck three toes on ground on hind foot Obipedal gait

Ornithischian dinosaurs had viscious recurved teeth for hunting prey O True O False

The earliest birds like Archaeopteryx had large flight feathers and a large keel on the chest for the breast muscles to attach to True False

Label the following diagram illustrating how Listeria monocytogenes can move among its various reservoirs to infect humans Whole vegetables Plants Soil Water Sewage Manure Equipment and environmental sources Humans Other meat producing animals and fish Ruminants B E Silage Carcass cuts Processed food Liquid milk

How many glyceraldehyde 3 phosphate G3P molecules would be produced by 18 turns of the Calvin cycle Part 2 1 point How many 6 carbon glucose molecules would be produced by 18 turns of the Calvin cycle Part 3 1 point 15 birphosphate molecules would be regenerated by 18 turns of the Calvin cycle

280nm 215nm 700nm 300nm Question 8 1 point Listen What technique do we use in protein isolation to purifying proteins SDS PAGE Ammonium sulfate precipitation PCR chromatography

0 1 0 2 0 10 0 100 Question 4 1 point Saved Listen eadings on the spectrophotometer Western blotting is the technique for the detection of A specific RNA in a sample A specific glycolipid in a sample A specific protein in a sample A specific DNA in a sample

Elute is the name given to the fluid that leaves the columns when salt buffers are added True False Question 10 1 point Listen epitope if present is a structure that is specific to RuBisCo and binds with the Secondary Antibody BCIP NBT Primary antibody M

For what reasons are lentiviruses attractive vectors for gene therapy Choose one or more OA They are capable of entering and inserting genes into a nondividing cell OB They can be targeted to many different tissues OC They deliver genes that become stably integrated and expressed in the host genome OD They are unrelated to natural human pathogens O E They have a low likelihood of activating oncogenes

2 Describe 3 distinct lines of evidence that support endosymbiotic theory Make sure to describe how these lines of evidence support the origin of mitochondria and chloroplasts

When fission of mitochondria becomes more frequent than fusion the mitochondria tend to become more numerous and QUESTION 42 The electron carrier has a prosthetic group derived from riboflavin QUESTION 43 Why was the number of heterotrophs on primitive Earth likely to have initially been severely restricted The spontaneous production of organic molecules occurs very slowly O The spontaneous production of organic molecules occurs very quickly O The early heterotrophs could not reproduce O The early heterotrophs reproduced too quickly O Organic molecules spontaneously broke down keeping their amounts low distinct

Flattened membranous structures that connect the thylakoids of different grana are known as stroma thylakoids O True O False QUESTION 20 The inner boundary membrane is particularly rich in which of the following O protons O proteins responsible for the import of mitochondrial proteins O Krebs cycle enzymes enzymes of the glycolytic pathway O glycosaminoglycans QUESTION 21 What part of the chlorophyll molecule absorbs light O the phytol chain O the porphyrin ring O the iron containing heme group the polypeptide backbone

Which of the following is not found in a reducing atmosphere OH2 O NH3 O 02 O H2O O Both O2 and H2O QUESTION 39 The energy released by proton movement through ATP synthase the binding affinity of the active site for the ATP product QUESTION 40 Organisms that use the radiant energy of the sun to convert carbon dioxide to organic molecules like carbohydrates and proteins are ca

What is the purpose of uncoupling proteins in mammalian brown adipose tissue O They give the tissue its color O They help the tissue expand and contract when needed O They function as a source of heat production during exposure to cold temperatures O They allow the production of a larger number of ATPS per glucose O They allow muscles to contract more efficiently QUESTION 33 Thylakoid membranes have high protein content O True O False QUESTION 34 Carbon monoxide is formed when electrons reach the bottom of the mitochondrial electron transport chain and bind to the final electron O True O False

hromosome A contains genes for an eye color of hazel Chromosome B contains genes for ha color of brown and chromosome C contains genes for an eye color of blue Which ones re homologous chromosomes a none of the chromosomes are homologous to one another b chromosomes A and C are homologous c chromosomes B and C are homologous d chromosomes A and B are homologous

Which of these cells is shown during metaphase 1 of meiosis a C XX XX a 502 O a b b XXX b C C d no correct answer given XX d None of these

The cell below is in metaphase I of meiosis There is no crossing over When this cell full completes meiosis what gametes will be formed XIX X X 8 X a ABD abd b AaBbDd only c AbD abd d AAbbDD aaBBdd

Which of the following is the correct binomial name for the killer whale whose full classificatio is Eukarya Animalia Chordata Mammalia Artiodactyla Delphinidae Orcinus orca a orcinus orca b Orcinus orca c D Orcinus Orca

Can the protein structure and function be predicted for amino acid sequence

Which of the following molecules is an amino acid Select all that apply HO A H B H A B C HHH NNNN D OH Select 3 correct answer s C HH H H CH SH OH H H N C C CH CH CH D 0 E H H C OH H C OH H CIOH H

Figure 21 23 Bell jar model N 2 3

The type of connection indicated by the arrows is S S S S Des a peptide bond a disulfide bond a hydrogen bond a glycoside linkage a phosphodiester linkage

Consumer Animal Cell Model Q1 To where does carbon dioxide go Q2 In what way s can carbon dioxide get there Q3 To where does oxygen go Q4 In what way s can oxygen get there Q5 Where is glucose broken down in the cell Q6 How is glucose transported to different cells Q7 How do you know the answer to Q6 Q8 How is your answer to Q6 different than in plants Q9 Where in the cell does glucose end up Why Q10 How is homeostasis maintained in this organism using your answers above

Q1 To where does carbon dioxide go Q2 In what way s can carbon dioxide get there Q3 To where does oxygen go Q4 In what way s can oxygen get there Q5 Where is glucose made in the cell Q6 From which types of plant cells does glucose originate Q7 Which types of plant cells must receive glucose from other plant cells Q8 How do you know the answer to Q7 Q9 Where in the cell does glucose end up Why Q10 How do the two organelles mentioned in your answers maintain homeostasis in this organism Go to the next page to answer questions about your Animal Cell Model

Testosterone and estradiol are male and female sex hormones respectively in many vertebrates In which of the following ways do these molecules differ from each other OH OH HO CH3 CH3 CH3 They are enantiomers of the same organic molecule They are cis trans isomers but have the same molecular formula They are structural isomers but have the same molecular formula They have different functional groups attached to the same carbon skeleton