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What is the condition under which an enzyme is defined as having a “ping-pong”
What is the condition under which an enzyme is defined as having a “ping-pong”
What is the condition under which an enzyme is defined as having a “ping-pong” mechanism?
A.  Enzyme (or enzyme/prosthetic group) is modified by substrate
B.  The enzyme has a dissociable coenzyme
C.  The first substrate on and the last product off show competitive binding
D.  The reaction is bimolecular
E.  The two substrates bind i
Biochemistry   couple007   479   Asked 10 years ago
An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBC
An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBC
Question: An AABbccDdEeFF individual is crossed with an individual with the genotype AaBBCCDdEeff. What is the probability that their offspring will have the genotype AaBBCcddEEFf?

Can someone help and explain how to figure this out?
thanks,
Genetics and Developmental Biology   nsch22   479   Asked 10 years ago
International Conference “Plant Genome Editing & Genome Engineering”
International Conference “Plant Genome Editing & Genome Engineering”
Welcome to the International Conference “Plant Genome Editing & Genome Engineering”!

Genome Editing and Genome Engineering are revolutionizing Life Sciences and Plant Biotechnology that seek to develop new technologies for the precise manipulation of genes and genomes in cellula and in vivo. In addition to its use for advancing our understanding of basic biology, geno
Off-Topic Room   AlisherTouraev   479   Asked 7 years ago
Analyzing chromosome 1 of a male and female
Analyzing chromosome 1 of a male and female
1. The first child of this couple was Rh- (Rhesus negative). What is the chance that the second child of this is a girl and Rh- (Rhesus negative)? Use Punnett squares and/or the calculation to show your work.

2. Nomenclature for writing alleles on a homologous chromosome pair
 
The phrase DEP/dep means the first three letters, DEP, represent the order in
Genetics and Developmental Biology   helpmepassbio   479   Asked 6 years ago
Could we start a Business and History board?
Could we start a Business and History board?
I am taking these courses next semester and I don't know where to add my questions Smiling Face with Halo
Off-Topic Room   colleen   480   Asked 11 years ago
have a couple questions can anyone answer them?
have a couple questions can anyone answer them?
   If the Constitution was written today, given what we now know about science and technology, particularly chemistry (and even more specifically biochemistry and molecular biology), what do you think it would include/not include, and why?
   How would it be different? Would there be a rewording based on what we know now? If so, how and wherein? There are lots of things to think a
Chemistry   Cupcake16   480   Asked 10 years ago
Draw what would happen when a hormone binds to a receptor, as shown in the diagr
Draw what would happen when a hormone binds to a receptor, as shown in the diagr
Draw what would happen when a hormone binds to a receptor, as shown in the diagram below.

 
Cell Biology   arealhero   480   Asked 9 years ago
In order to be able factoring polynomial equations. What would you recommend to bone up more?
In order to be able factoring polynomial equations. What would you recommend to bone up more?
What's the easiest way to learn factoring polynomials?
Mathematics   incagirl   481   Asked 11 years ago
What is the origin of life?
What is the origin of life?
There are many kinds of theory about origin of life,such as:1.theory of special creation,
2.theory of bio genesis,
3.cosmozic theory,
4.theory of spontaneous generation
5.theory of chemical evolution
6.theory of eternity
7.theory of organic evolution and so on.

But what is the correct theory?

[url=http://www.biologicalhelp.
General Biology   greatmona1   482   Asked 11 years ago
Lymphoid stem cell myeloid stem cell hemocytoblast megakaryocytes
Lymphoid stem cell myeloid stem cell hemocytoblast megakaryocytes
lymphoid stem cell

myeloid stem cell

hemocytoblast

megakaryocytes
Anatomy and Physiology   ninaaden   482   Asked 7 years ago
A meteoroid is (Multiple Choice)
A meteoroid is (Multiple Choice)
A meteoroid is
A) a small particle of an asteroid
B) a giant asteroid
C) a streak of light across the sky
D) a meteor that has struck the Earth's surface
Environmental and Conservation Biology   Hog95   483   Asked 9 years ago
Which number indicates acidy on a pH scale
Which number indicates acidy on a pH scale
??
Post Merge: 10 years ago

I think i got it its any number less than 7 ..in this case 1 is the answer yey xp
Environmental and Conservation Biology   Javiie   484   Asked 10 years ago
Wicketkeeper in Cricket.
Wicketkeeper in Cricket.
https://en.wikipedia.org/wiki/Wicket-keeper

Do you feel its always easy for a wicketkeeper in cricket to catch catches behind the stumps of a Fast or Spin bowler on his right hand side rather catching catches on his left hand side?

Thanks & Regards,
Prashant S Akerkar
Post Merge: 3 years ago

Thanks.
Off-Topic Room   prashantakerkar   484   Asked 3 years ago
Transmission Ratio Distortion
Transmission Ratio Distortion
Transmission Ratio Distortion is the inheritance of genes in a non-mendelian ratio.
Also known as meiotic drive..

Can anyone give me some of the general characteristics of a TRD system?
Thank you in advance!
Genetics and Developmental Biology   crmilano   485   Asked 11 years ago
Dreams causing real injuries?
Dreams causing real injuries?
Has there ever been a study to confirm this? It seems similar to the ''nocebo'' effect. Your thoughts?



''There are a lot of stories floating around out there about people who experienced an injury in their dreams and then found real, physical evidence of the wound on their bodies once they awoke. For instance, some people have cla
News Articles and Discussion   GaiaGirl95   487   Asked 10 years ago
What is the wavelength, in nanometers, of the light emitted when the electron in a hydrogen atom drops?
What is the wavelength, in nanometers, of the light emitted when the electron in a hydrogen atom drops?
What is the wavelength, in nanometers, and the frequency of the light emitted when the electron in a hydrogen atom drops from the energy level   = 10 to  = 5?
And in what electromagnetic spectrum is this light?
Physics   bunnyhugger   488   Asked 10 years ago
DARPA calls for antibiotic replacement
DARPA calls for antibiotic replacement
DARPA calls for antibiotic replacement



Penicillin, the first natural antibiotic discovered by Alexander Fleming in 1928

Most everyone that has been keeping abreast of world events knows that the clock i
News Articles and Discussion   bio_man   489   Asked 12 years ago
anatomy and physiology questions need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
anatomy and physiology questions need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1.) what would happen if a skeletal muscle were fully contracted and calcium was completely removed from the muscle cell in an infant?

2.) if a person is given a drug that interferes with the action of acetylcholinesteras e at the terminal synapses, what would be an affect?

3.)the following experiments were performed on a single unit smooth muscle in the
Anatomy and Physiology   mandy!   489   Asked 11 years ago
Quantitative Inheritance Questions
Quantitative Inheritance Questions
. In rye grass, seed color is a polygenic trait (additive model). If true-breeding red and white varieties are crossed, the F1 are intermediate in color. If the F1 are self-fertilized, about 1 in 64 have white seeds. If the F1 are testcrossed, how many different genotypic categories will be produced?

A. one
B. two
C. three
D. eight
E. 64
7. In rye
Genetics and Developmental Biology   D-rose   490   Asked 9 years ago
Complete a performance report through the segment margin line?
Complete a performance report through the segment margin line?
Carvell Industries has gathered the following information about the actual sales revenues and expenses for its pharmaceuticals segment for the most recent year.
Sales . . . . . . . . . . . . . . . . . . . . . . . . . . .$1,106,640
Variable Cost of Goods Sold . . . . . . . . . .$165,996
Variable Operating Expenses . . . . . . . . . .$223,938
Direct Fixed Manufactu
Accounting   nharoun   490   Asked 7 years ago
How is surge pricing ensuring the market is allocative efficient?
How is surge pricing ensuring the market is allocative efficient?
How is surge pricing ensuring the market is allocative efficient? Explain how consumer and producer surplus change as a result of price surging. Why would these changes upset customers?
Economics   r5708486   490   Asked 7 years ago
World's lightest material developed
World's lightest material developed
World's lightest material developed



Ultralight metallic microlattice with a density of 0.9 mg/cm3.

A team of researchers from UC Irvine, HRL Laboratories and the California Institute of Technolo
News Articles and Discussion   bio_man   493   Asked 12 years ago
Dual Luciferase Reporter Gene Assays
Dual Luciferase Reporter Gene Assays
The accuracy of reporter assays can be improved by utilizing a dual reporter system. One of the reporter genes is correlated with the promoter of interest and is used to assess the effects of specific experimental conditions, while the second reporter is used as a control and serves as a baseline response. The Super Light™ Dual- Luciferase Reporter Assay allows for the sequential me
Genetics and Developmental Biology   MarkHolland   493   Asked 11 years ago
Show me the rhyme scheme for the sonnet. Loves inconsistency poetry
Show me the rhyme scheme for the sonnet. Loves inconsistency poetry
poetry
Anatomy and Physiology   ruclean3yrs   493   Asked 7 years ago
Phases
Phases
In order for anaphase to begin, which of the following must occur?
Cell Biology   xotrinaxo4   494   Asked 11 years ago
What is the equivalent capacitance of the combination shown in the figure?
What is the equivalent capacitance of the combination shown in the figure?
http://farm5.static.flickr.com/4145/5442189977_4e29ae8323.jpg
What is the equivalent capacitance of the combination shown in the figure?
DATA: C1 = 2.0 ?F, C2 = 3.0 ?F, C3 = 3.5 ?F, V = + 85 V.
I have worked this problem over and over and keep getting 2.06 F and it's incorrect. Does anyone have a different or more precise answer?
Physics   leolena   494   Asked 11 years ago
This person is playing techno on a guitar!
This person is playing techno on a guitar!
This is the coolest thing I've seen. And they say trance music can only be created on the computer - balderdash!

Off-Topic Room   duddy   494   Asked 11 years ago
Which type of nucleic acid forms a high energy bond with an amino acid
Which type of nucleic acid forms a high energy bond with an amino acid
Which type of nucleic acid forms a high energy bond with an amino acid during protein synthesis?
A.  Messenger RNA
B.  Mitochondrial DNA
C.  Nuclear DNA
D.  Ribosomal RNA
E.  Transfer RNA

Which of the following statements is not true about the human genome?
A.  It is present in each somatic (i.e., not germline) c
Biochemistry   couple007   494   Asked 10 years ago
Yeast cells help please
Yeast cells help please
What is the effect of yeast suspended in ethanol have on sodium sulfate or Mgco3? What metabolic activity will be shown?
General Biology   gh1991   494   Asked 10 years ago
Jake was rabbit hunting with some friends, and accidentally got shot... (Nerves and reflexes)
Jake was rabbit hunting with some friends, and accidentally got shot... (Nerves and reflexes)
Jake was rabbit hunting with some friends, and accidentally got shot with buckshot in his left thigh. At the ER, the nurse recorded that Jake could not hold his weight on that leg, and had no sensation on the posterior thigh and lower leg. The doctor tested Jake's reflexes and found his patellar reflex to be intact, but his posterior leg reflexes such as the calcaneal (Achilles
Anatomy and Physiology   body_atlas   494   Asked 8 years ago
Need Dissection Exercise 1 Marieb Lab Manual Cat Edition
Need Dissection Exercise 1 Marieb Lab Manual Cat Edition
I need the blanks for the first dissection exercise of the Human A&P Lab Manual Cat Edition (p. 697 in the 12th edition for reference, but edition is not important--I just need to sheet!). Muchas gracias!
Anatomy and Physiology   paigenp7   494   Asked 8 years ago
westlands becomes more vulnerable to destructive wildfires because of
westlands becomes more vulnerable to destructive wildfires because of
westlands becomes more vulnerable to destructive wildfires because of
Environmental and Conservation Biology   dmcintosh   496   Asked 9 years ago
Do animals like doves have chiasma optica?
Do animals like doves have chiasma optica?
The human eyes have something called chiasma optica. This is due to (to my understanding) splitting nerve that comes from each eye and goes into each half of the brain. This makes viewing a single picture with two eyes possible and apparently also makes that the viewing angle is somewhat the same if you close one eye.

My question is: Do animals like doves have this as wel
News Articles and Discussion   Tracomaster   496   Asked 8 years ago
Your student association is looking for an auditorium to rent for an all-day conference. The univers
Your student association is looking for an auditorium to rent for an all-day conference. The univers
Your student association is looking for an auditorium to rent for an all-day conference. The university's Performing Arts Center is vacant on that day, so the association wants to rent it. The physical plant manager tells you that the daily rent is $660, which includes $400 to cover part of the cost paid to build the Center, $40 to cover part of its regular maintenance cost, $5
Economics   malook90   496   Asked 8 years ago
Multi-regional hypothesis
Multi-regional hypothesis
The ‘out of Africa’ hypothesis of human evolution suggests all modern human
ethnic groups arose from a quite recent common ancestor. In contrast, the
‘multi-regional’ hypothesis suggests Homo erectus evolved into Homo sapiens
separately in different geographical locations in our more distant past. If the
multi-regional hypothesis were found to be correct what wou
Anthropology   hilal6   496   Asked 8 years ago
Help with Identificatying Restriction Enzyme Recognition Sites in a DNA sequence
Help with Identificatying Restriction Enzyme Recognition Sites in a DNA sequence
Hi Folks,

I'm really struggling with a PCR & restriction enzyme question that's part of my formative (unmarked) work for the summer months in preparation from an Applied Biology course at University.

The entire set of questions are set out on an instruction sheet so I'll try to replicate them here as I'm struggling to fully understand ho
Genetics and Developmental Biology   AppliedBiology9   496   Asked 7 years ago
Animation - Death Calculator
Animation - Death Calculator
What assumptions are built into estimations of life expectation?

This animation calculates a life expectancy based on information used by insurance companies. Data is collected on the number of people dying in each age class (year of age) for a particular year. This pattern is assumed to continue unchanged into the future. To calculate the average of life expectancy for
Other   bio_man   497   Asked 12 years ago
Psychopaths' brains show differences in structure and function
Psychopaths' brains show differences in structure and function
Psychopaths' brains show differences in structure and function



Modern human brain.

Images of prisoners' brains show important differences between those who are diagnosed as psychopaths and those who aren'
News Articles and Discussion   bio_man   497   Asked 12 years ago
What happes when you copy down a problem wrong
What happes when you copy down a problem wrong
Off-Topic Room   foadbear   497   Asked 11 years ago
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