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April 23, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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biology
what specific stage during the cell cycle does random fertilization occur?
Thursday, February 28, 2013 at 10:11pm

biology
What is the ploidy (haploid/diploid) level and how many sister chromatids are there in your own cells during anphase I, anaphase II, and telophase II (includes cytokinesis)?
Thursday, February 28, 2013 at 10:10pm

biology
Briefly describe the structure and function of three different cellular systems that combine proteins along with necessary RNAs to catalyze covalent bond formation and/or hydrolysis reactions (i.e., function as ribozymes)?
Thursday, February 28, 2013 at 10:09pm

biology
Yes, but when you do theses Hardy-Weinberg problems you are suppose to let the recessive gene equal p and the autosomal dominant gene equal q. When I started doing this for you I accidentally switched it, but the numbers are correct. The post should read Let p=sickle cell and ...
Thursday, February 28, 2013 at 7:50pm

biology help plz?????????????????
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Thursday, February 28, 2013 at 9:34am

biology help plz?????????????????
Complete the following paragraph relating to the enzyme, β–galactosidase. This enzyme hydrolyses the disaccharide lactose to constituent monosaccharides, galactose and glucose. Drag and drop the appropriate words into the correct space. For white spaces in the ...
Thursday, February 28, 2013 at 9:11am

biology
thanks! so the heterozygous and homozygous dominant genotypes are p^2 and 2pq?
Thursday, February 28, 2013 at 6:17am

biology
Sickle cell anemia is autosomal dominant. Let p=sickle cell and q=normal cell. p+q=1 (p+q)^2=p^2+2pq+q^2=1 p^2= homozygous dominant q^2=sickle cell 2pq=heterozygous For Central Africa 0.1=q^2=sickle cell q=0.316 p=1-0.316=0.684 p^2= homozygous dominant=(0.684)^2=0.468 q^2=...
Thursday, February 28, 2013 at 12:34am

biology
how do i do this?
Wednesday, February 27, 2013 at 8:22pm

biology
The frequency of the sickle cell disease in parts of Central Africa is as high as 10 percent compared to a frequency of .5 percent in the US. Use the percentages for the Central Africa population and the US population to calculate the frequency of the heterozygous and ...
Wednesday, February 27, 2013 at 8:22pm

Biology
You are begging to get yourself banned! Do NOT post only answers on other students' posts. They learn nothing from that.
Wednesday, February 27, 2013 at 11:55am

Biology
When does DNA synthesis occur???
Wednesday, February 27, 2013 at 11:37am

biology
what characteristics appear to show consistent development over the 4 million years of hominid evolution?
Tuesday, February 26, 2013 at 10:12pm

Biology
There is a specific fossilization process for every creature, mostly likely the sand didn't settle as quickly as necessary for the fossil to become sediment.
Tuesday, February 26, 2013 at 6:14pm

Biology
When cells increase in size, the surface area to volume ratio decreases. But which surface area to volume ratio is better to the cell as well as to the organism? The larger or smaller ratio?
Tuesday, February 26, 2013 at 2:10am

Biology
I think B. Plutonium is radioactive. A mutation that changes a single base in a region of noncoding DNA would not have any or would have minimum effect on a cell. And most of the stuff that living beings consume are carbon based.
Monday, February 25, 2013 at 10:51pm

Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds Im clueless!!!
Monday, February 25, 2013 at 10:41pm

biology
Why are the subclavian vein and subclavian artery positioned where they are relative to each other?
Monday, February 25, 2013 at 6:27pm

finance
You have chosen biology as your college major because you would like to be a medical doctor. However, you find that the probability of being accepted to medical school is about 6 percent. If you are accepted to medical school, then your starting salary when you graduate will ...
Monday, February 25, 2013 at 3:55pm

Biology
Most likely the one with the most descendants. Evolutionary science generally deals with the passing on of genes, and that frog would have reproduced the most and would therefore have been the most successful.
Sunday, February 24, 2013 at 9:50pm

Biology
The mice would be half heterozygous for black, and half white.
Sunday, February 24, 2013 at 9:47pm

biology
In a chorus of male frogs of one species, which would be considered by evolutionary biologists to be the fittest? The biggest frog. The frog that has the most descendants. The frog with the largest territory. The loudest frog. The frog that attracts the most females. I am ...
Sunday, February 24, 2013 at 9:46pm

biology urgent
In mice, a gene controlling coat colour has 2 alleles; B (black) and b (white). A pure breeding black mouse is crossed to a white mouse and all the offspring are black. The offspring are then crossed to white mice. The phenotypes of the offspring of this second cross are ...
Sunday, February 24, 2013 at 9:39pm

Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds
Sunday, February 24, 2013 at 8:53pm

Biology
Which of the following mutations would you expect to have the greatest effect on a living cell? A. A mutation that changes a single base in a region of noncoding DNA B. Energy release from plutonium C. Consumptions of preexisting organic compounds Im clueless!!!
Sunday, February 24, 2013 at 5:25pm

biology
Describe human dispersal, animal dispersal- eating, hook on fur and bursting. Also how they are adapted.
Sunday, February 24, 2013 at 2:57pm

biology
oh, a snail and Elodea
Sunday, February 24, 2013 at 12:22pm

biology (incomplete)
What organisms?
Sunday, February 24, 2013 at 12:00pm

biology
Since this is not my area of expertise, I searched Google under the key words "Aquarium plants snails" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=aquarium+plants+snails&ie=UT​F-8&oe=UTF-8 In the future, you can ...
Sunday, February 24, 2013 at 11:59am

biology
Since this is not my area of expertise, I searched Google under the key words "Aquarium plants snails" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=aquarium+plants+snails&ie=UT​F-8&oe=UTF-8 In the future, you can ...
Sunday, February 24, 2013 at 11:59am

biology
Can a snail survive in an aquarium with no living plants in it? What do fish owners do to compensate if their aquarium has no plants?
Saturday, February 23, 2013 at 6:41pm

biology
27. Pretend you are a carbon atom that was part of a molecule of CO2 dissolved in the water at the beginning of the experiment. Describe a path you could take through both organisms in this experiment, including the molecules you would be a part of and the chemical reactions ...
Saturday, February 23, 2013 at 6:30pm

Biology
http://drdavespsychologypage.intuitwebsi​tes.com/Memory__What_Memory_.pdf
Saturday, February 23, 2013 at 1:34pm

biology needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Saturday, February 23, 2013 at 1:31pm

Biology
A new individual (after 9 months, if human).
Saturday, February 23, 2013 at 1:28pm

Biology
Um.. A completely ready to develop creature, different from both parents, but having some attributes of both? I'm puzzled, because the question almost seems to answer itself, but there's my best guess. :P
Saturday, February 23, 2013 at 6:36am

biology help?
this is an OU tma question! do the bloody reading you lazy sod- it won t help you in the exam!
Saturday, February 23, 2013 at 6:12am

Physics- PLEASE HELP
Check out the Mike's Online Biology Blog where this is explained in a video lesson the address is freebiologyschool period blogspot periodcom
Saturday, February 23, 2013 at 12:42am

Biology
Sperm and egg are both haploid, with each having 23 chromosomes. When they are fused, the produce a diploid zygote (46 chromosomes). So I do not necessarily understand this question to be of any assistance.
Friday, February 22, 2013 at 9:23pm

Biology
Not sure do you need to know how much ATP is produced or what happens in general. I just gave you the generics for both anaerobic and aerobic respiration.
Friday, February 22, 2013 at 9:21pm

Biology
Answer
Friday, February 22, 2013 at 9:19pm

Biology
In general, but this question is not specific. Aerobic respiration: Glucose + Oxygen ----> Carbon Dioxide + Water + Energy C6H12O6 + 6O2 ----> 6CO2 + 6H2O + Energy Anaerobic respiration: Glucose ----> Ethanol + Carbon Dioxide + Energy C6H12O6 ----> 2C2H5OH + 2CO2...
Friday, February 22, 2013 at 9:05pm

Biology
This question seems unclear.
Friday, February 22, 2013 at 9:03pm

Biology
Please Help Quick,Write Out The Balanced Chemical Equation For Respiration In An Athlete In A Race.
Friday, February 22, 2013 at 9:01pm

Biology
What results in the combination of the haploid sets of chromosomes from two individuals into a diploid zygote
Friday, February 22, 2013 at 7:40pm

Biology
What results in the combination of the haploid sets of chromosomes from two individuals into a diploid zygote
Friday, February 22, 2013 at 6:22pm

Biology
* Natural
Friday, February 22, 2013 at 5:24pm

Biology
atural defence mechanisms (or innate factors) against malaria are most apparent in populations continually exposed to malaria parasites. For example, inherited conditions such as sickle cell anaemia and beta-thalassaemia, which cause deformities in red blood cells and are ...
Friday, February 22, 2013 at 5:24pm

Biology
Which disorder causes a natural immunity to Malaria?
Friday, February 22, 2013 at 5:17pm

Biology
1) What memory system is sensation responsible for? Sensory, short term or long term memory system? Explain. 2) How does encoding memories relate to transfer appropriate processing and fluid intelligence?
Friday, February 22, 2013 at 1:26pm

biology (incomplete)
Other than what?
Friday, February 22, 2013 at 12:27pm

biology help?
First briefly show why the two are not threatened to the point of Red listing. Then, show in detail why the three species in the most danger need to go on the Red list.
Thursday, February 21, 2013 at 5:50pm

biology help?
sorry i forgot to give the name of the species . family lemuridae- species Eulemur coronatus
Thursday, February 21, 2013 at 4:04pm

biology help?
We anticipate the evidence gathered by you will indicate that three of the five species are in greater need of prioritising for conservation compared with the other two. You should start your account by very briefly explaining why these two species were considered to be of ...
Thursday, February 21, 2013 at 4:02pm

10th grade biology
protist. because protist can survive in harsh enviroments
Thursday, February 21, 2013 at 3:39pm

Psychology/Biology Help!!
1) What memory system is sensation responsible for? Sensory, short term or long term memory system? Explain. 2) How does encoding memories relate to transfer appropriate processing and fluid intelligence?
Thursday, February 21, 2013 at 12:16pm

biology
Another environmenat factor that can affect enzyme activity is inhibitor. It can be competitive or non-competitive inhibitor. In both cases, inhibitors are some drugs and they are acquired from the environment and interfere in the biochemical reaction of body. eg. Asprin
Thursday, February 21, 2013 at 11:20am

Biology
I'm not sure if this is relevant, but AIDS tests can be fouled by extraneous genetic material like flu virus particles.
Wednesday, February 20, 2013 at 11:31pm

Biology
You may want to post this in a different forum_search_20140419; I have never used this test, but maybe someone can give you an answer for it in this forum_search_20140419.
Wednesday, February 20, 2013 at 7:42pm

Biology
What kinds of substances could interfere with the Dische's test for DNA? I'm wondering if proteins can interfere with this. Please help me
Wednesday, February 20, 2013 at 6:57pm

Biology....someone who can explain something to me
Queen
Wednesday, February 20, 2013 at 4:18pm

Biology
I apologize, it is converted to lactic acid to produce NAD+ from NADH.
Wednesday, February 20, 2013 at 2:46pm

Biology
Converted to latic acid to produce NADH.
Wednesday, February 20, 2013 at 2:42pm

biology helppppppppppppppp
I saw this earlier and decided not to answer because of the length and the amount of work required. Also, posting all three questions leads me to believe that you wanted someone to do all of your homework, and I have a problem with individuals doing that and not trying to ...
Wednesday, February 20, 2013 at 2:40pm

Biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Wednesday, February 20, 2013 at 12:40pm

biology helppppppppppppppp
(This homework question has been removed due to a copyright claim submitted by The Open University.)
Wednesday, February 20, 2013 at 12:20pm

Biology
DNAandRNADIFF*
Wednesday, February 20, 2013 at 6:09am

Biology
Please Help Quick,Write The Balanced Chemical Equation For Respiration In An Athlete In A Race.
Wednesday, February 20, 2013 at 5:51am

Biology
Please Help Quick,Write The Balanced Chemical Equation For Respiration In Plants.
Wednesday, February 20, 2013 at 5:43am

Biology
Please Help Quick,Under Anaerobic Condition,Explain What Happens To Glucose In Yeast And In Humans?
Wednesday, February 20, 2013 at 5:22am

Statistics
In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of your total grade, each major test is worth 22.5...
Tuesday, February 19, 2013 at 5:06pm

SCIENCE Biology (urgent)
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Tuesday, February 19, 2013 at 7:41am

SCIENCE Biology (urgent)
1.Do organisms benefit from being classified as a different species?How? 2.Importance of classifying organisms.. I;m not good in science...
Tuesday, February 19, 2013 at 6:36am

Biology
Although in anaerobic respiration the final electron acceptor is not oxygen, the final electron acceptor is a compound that contains oxygen. Google anaerobic respiration to find compounds that are used as the final electron acceptor during anaerobic respiration.
Sunday, February 17, 2013 at 11:11pm

biology
Think about heat and bonds: what would happen to bonds (i.e., Hydrogen-bonds, covalent bonds, electrostatic interactions, etc.)? Remember, changing bond length or breaking bonds, changes tertiary structure. This can cause problems during substrate and enzyme interactions. Hope...
Sunday, February 17, 2013 at 11:06pm

biology
Heat Perform an activity assay under different temperatures.
Sunday, February 17, 2013 at 11:03pm

biology
The effect of low pH on the enzyeme.
Sunday, February 17, 2013 at 10:04pm

biology
People with a lactose intolerance are able to take products such as Lactaid that contain the lactase enzyme with their meals. These products can be taken in pill form. Considering the fact that the pill form of the enzyme would have to travel through the person's stomach, ...
Sunday, February 17, 2013 at 9:57pm

biology
substrate concentration and pH affect enzyme activity. Is there another environmental condition you think could affect enzyme activity How would you test your hypothesis?
Sunday, February 17, 2013 at 8:10pm

biology
30. Enzymes function most efficiently at the temperature of a typical cell, which is 37 degrees Celsius. Increases or decreases in temperature can significantly lower the reaction rate. What does this suggest about the importance of temperature-regulating mechanisms in ...
Sunday, February 17, 2013 at 8:09pm

Biology
How is the anaerobic energy system not entirely anaerobic?
Sunday, February 17, 2013 at 7:36pm

biology
What vessels carry oxygen rich blood to the left atrium?
Sunday, February 17, 2013 at 12:15pm

biology
Since this is not my area of expertise, I searched Google under the key words "full citation guide of an article" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=full+citation+guide+of+an+ar​ticle&ie=UTF-8&oe=UTF-8 In ...
Saturday, February 16, 2013 at 9:43am

biology
What is the name of the instrument use in measuring Ph slope,depth of water,hydrogen ion concentration.
Saturday, February 16, 2013 at 4:49am

biology
what is a full citation guide of an article?
Saturday, February 16, 2013 at 2:03am

biology help?
I would need to see the figures to be able to help.
Saturday, February 16, 2013 at 1:20am

biology help?
In 1857, Louis Pasteur discovered that yeast is a living organism. The activity of yeast causes fermentation – baker’s yeast, Saccharomyces cerevisiae, has been used for centuries in the production of bread, beer and wine. In the absence of oxygen, yeast is able to ...
Friday, February 15, 2013 at 4:51am

BIOLOGY PLEASE HELP!!!!!!!!!!!!!!!!
actually its atp synthase
Thursday, February 14, 2013 at 9:04pm

BIOLOGY PLEASE HELP!!!!!!!!!!!!!!!!
The answer is Succinate Dehydrogenase, I dont know how you can fit it into the spaces.Succinatase?
Thursday, February 14, 2013 at 8:34pm

BIOLOGY PLEASE HELP!!!!!!!!!!!!!!!!
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria Crossword puzzle 11 spaces sixth letter is n cant figure it out?
Thursday, February 14, 2013 at 8:21pm

biology
inner membrane space
Thursday, February 14, 2013 at 8:14pm

biology
Its a Crossword
Thursday, February 14, 2013 at 8:05pm

biology
where do h+ ions accumulate in the mito chondria? 18 spaces 17th letter is c cant figure it out?
Thursday, February 14, 2013 at 8:00pm

Biology
Carbon Dioxide
Thursday, February 14, 2013 at 7:58pm

biology
embedded protein in the electron transport chain where h+ ions flow back into the matrix of the mitochondria 11 spaces sixth letter is n cant figure it out?
Thursday, February 14, 2013 at 7:57pm

Biology
what molecule is released before acetyl coa enters the krebs cycle Doing cross word puzzle 13 spaces cant figure it out?
Thursday, February 14, 2013 at 7:55pm

Biology
Because males have only one x chromosome,males are more likely than females to have a sex linked trait is controlled by a allele for a trait and one dominant.
Thursday, February 14, 2013 at 12:38am

Biology
Which chromosome is more exposed to sex-linked disorders X or Y chromosome? Why?
Thursday, February 14, 2013 at 12:14am

Biology
I put ~Pig thymus, thyroid, spleen male v. female~, in Google, and skimmed a few articles there. It looks like spleens are the same... look and see what you find.
Wednesday, February 13, 2013 at 10:59pm

Biology
Are there any differences between the thyroid gland, thymus gland, and spleen in a male and female pig?
Wednesday, February 13, 2013 at 9:59pm

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