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0answers
19 views

DNA like marine animal or egg

What is the name of the marine egg or living being that is transparent like a jelly fish or a Venus girdle, with a shape like a DNA or better like a chain of infinites, long as half of a hand and ...
1
vote
1answer
31 views

What is the difference between transpiration and evapotranspiration?

According to my point of view transpiration and evapotranspiration are different things, but i am confused about this topic. After great effort, I found a major difference between it. Transpiration: ...
0
votes
4answers
83 views

Why do mutations not take place in mRNA of higher eukaryotes?

Is it because it is too short-lived to be mutated? Both DNA and RNA are nucleic acids so how is mRNA protected? RNA viruses undergo mutations to evolve so I guess it is not immune to mutations
0
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0answers
18 views

What causes the unpleasant feeling when brushing teeth after eating something sour

I have noticed a strange unpleasant feeling when I brush my teeth if I have eaten something very sour the same day. It only happens when touching the teeth near the area where the thing was chewed. I ...
0
votes
1answer
37 views

gene manipulation books for beginners

Are there any introductory book to explain gene manipulation in yeast for non-biologist? I had a look at this book and now I have some ideas. I like to read another book at the same level which is ...
0
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1answer
55 views

Effects of mushrooms on their hosts

I learned that mushrooms are normally classified as either decomposers or symbiotes. I would like to know the differences between the two types and whether they are detrimental or beneficial to their ...
2
votes
1answer
46 views

What is the biological advantage of bilaterity?

I was wondering why there were so many bilateral species (under the bilateria clade) in comparison with the cnidaria clade. I have two or so questions: Am I (or are we) unaware of the diversity and ...
0
votes
1answer
27 views

griffith's experiment if both s and r strains are added can the r strain be isolated from blood of the mice

in the Griffith's experiment for transformation principle, when both the s strain and the r strain were injected into the blood of the mice ,could the r strain be isolated from the blood the dead mice....
-1
votes
1answer
31 views

Which are more beneficial: lyophilized or hydrolized collagen peptides?

Looking at two different manufacturing methods for collagen peptides: hydrolyzed vs lyophilized (freeze dried), I read that hydrolyzed results in a hydrophobic biolayer molecule collagen peptide. Re:...
1
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0answers
40 views

How many kangaroos would you have to add to a northern climate before they could start adapting to it? [closed]

If some enterprising billionaire wanted to introduce Kangaroos to a northern climate such as the northern boreal forest by Fort McMurray in Alberta, would it be possible for the Kangaroo's to survive ...
5
votes
1answer
48 views

A little help understanding DNA supercoiling

I am studying molecular biology from Lewin's Genes XII and got confused in the supercoiling topic. Since then I read from several other sources and so far understood the following. However, I can't ...
0
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0answers
31 views

Why is the eye socket called orbit? [closed]

Does anyone know the word origin of orbit? I used to think that the "orbito-" in orbitofrontal cortex is describing the general direction, until today I found out that orbit actually means eye socket (...
0
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0answers
18 views

Can anyone identify whether or not these are bird or rodent mites?

I found these on my patio furniture directly under a bird's nest that has hatchlings. Surrounding landscape is ivy so we do have raccoons and mice in the area.
-1
votes
1answer
38 views

Can anyone help me identify the size of a mantis shrimp club?

The mantis shrimp punches with it's club to destroy its prey's shell. I found on the internet that its body size is around 4 inches. What's the size of it's club?
0
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0answers
33 views

Effectiveness of feces as a fertilzer

How effective is feces such as cows, chicken or horses for fertilizing the earth of a garden in order to grow crops.
0
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0answers
16 views

How many teeth do sharks grow and lose?

Even though sharks are not classified as mammals, they do seem to have great many teeth. Around how many teeth do sharks grow and lose over the course of their underwater life?
0
votes
1answer
23 views

Do dead bivalves always float in water?

This 2014 Oct 14 article by Jolene Bouchon avouches: How do you know if your bivalves are alive? Immediately get rid of anything with broken or damaged shells. Clams and mussels shells should be ...
0
votes
1answer
45 views

Tools I can use to find similar genes

What tools are available to estimate the function and purpose of a gene ? I think the right approach is to find similar sequences of genes that we know the function of. All the information I have on ...
0
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0answers
23 views

Force on the ion channel

Suppose that one could pull directly on the gate of an ion channel, and that the gate swings through 2 nm as it goes from the closed to the open position. If, in the absence of force, the channel ...
6
votes
2answers
96 views

What species is this fast-moving spider?

This is a frame from a recent recording: Location Forest in Central Europe at around 1pm. Abiotic factors at the time of recording Temperature = 23°C Humidity = 38% Wind = 6 km/h Description ...
0
votes
1answer
36 views

What is the difference between protein and peptide? [closed]

On which basis do protein and peptide are divided? I mean which factors differentiate them?
1
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0answers
33 views

How many different chemical substances are there (on the average) in a human cell?

How many different chemical substances are there (on the average) in a human cell? I saw of an estimation of ~ 1 billion (10^9) in sci-pop books. Is there any reliable estimation rooted in the ...
1
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0answers
64 views

What are the sufficient criteria that make an entity a living homo sapiens? [closed]

When I say criteria I mean like x biological functions or y genetics. If it were to be appearance,anatomy. A corpse completely looks like a man. Moreover a person who has had their 4 limbs amputated, ...
3
votes
2answers
47 views

What is a “Valid Species”?

I read in a reference book on Google Books (Biology of Termites: a Modern Synthesis, eds. Bignell, Roisin, and Lo) that the termite Heterotermes perfidus found on the South Atlantic island of St ...
1
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0answers
44 views

Why is sorbitol used in buffers?

Many protocols in my lab use sorbitol in buffers. For instance, in co-immunoprecipitation, we include it at a final concentration of 200 mM in our lysis buffer. I'm not entirely sure why though. I ...
2
votes
0answers
38 views

What kind of skull is this-I found it on the beach in Cape May

I am hoping someone can help identify this skull! We found it on the beach in Cape May. The skull size is about 4 inch in length. Thank you.
2
votes
1answer
36 views

Is this aquatic plant duckweed or something else?

This plant has been growing in my pond for quite a time now. It multiplies in large numbers rapidly. Some told me it is duckweed or is it something else?
0
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1answer
20 views

What is the difference between differentiation and phenotype switching?

I am trying to model bone remodeling process and I wonder what is the difference between phenotype switching and differentiation. I am relatively inexperienced in biology. Please explain me with ...
6
votes
3answers
125 views

Will modern-day insects grow to massive size in a high-oxygen environment?

It's a reasonably well-known fact that insects grew to massive sizes due to the excessive concentration of oxygen in the prehistoric-Earth's atmosphere. If one were to try to recreate this high-...
-1
votes
2answers
54 views

Why does flicking a finger generate so much more force than extending it quickly?

Flicking a finger (holding it back with e.g. the thumb while building up "pressure" against the thumb, then releasing) is much more powerful than just uncurling the finger quickly. I tried to do the ...
0
votes
0answers
24 views

What kind of bonds are there between a Transcription Factor and its DNA binding site?

I want to know what kind of bonds are there between a Transcription Factor and its DNA binding site when the complex is created. This information will be used to determine the method for a molecular ...
1
vote
1answer
28 views

How does bacteriorhodopsin differ from the rhodopsin present in mammalian eyes?

In my high school textbook, it is written that they are similar. So, I was just curious to know about this. Thank you.
9
votes
1answer
83 views

What kind of fish is this white blue-stained fish?

This fish has been spotted at the Great Barrier Reef near Cairns (Queensland). I put a big effort to find it via Google but never could encounter anything similar. I have also made an attempt to find ...
3
votes
2answers
88 views

About the definition of ketogenic amino acid

I am studying biochemistry and have been looking at metabolic network diagrams showing the different intermediates of glycolysis and the citric acid cycle that amino acids can be converted to. I have ...
1
vote
2answers
23 views

How are single cells sorted in an scRNA-Seq protocol by FACS?

I am computational guy trying to understand how FACS sorting works in an scRNA-Seq protocol. About sorting single cells in each well of a 384-well plate, I have a question that would be grateful if ...
0
votes
0answers
38 views

Evolution of the reproductive drive? [on hold]

At some point in the early earth the right mix of biochemicals combine to form to first organisms(or maybe they came on a meteor). Regardless, I would assume the original unicellular organism did not ...
0
votes
1answer
46 views

How fast do hummingbirds fly?

Hhhmz! A hummingbirds flew past me while I was in the garden and yet, it still managed to halt perfectly in front of a blooming flower nearest to me. Just as soon I began to wonder, how fast do ...
3
votes
1answer
138 views

Is the Amazon forest O2 and CO2 neutral?

In these days, we receive a lot of concerning news about the Amazon burning. Recently, I came across widespread claims about the production of O2 and the absorption of CO2 by the Amazon forest, ...
1
vote
0answers
20 views

what is the relation between protein domain and disease? [closed]

I am computer science student, and I am interested in bioinformatics. Thus, I am just at the beginning of learning some biology concepts. I am asking about the relation between protein domains and ...
6
votes
1answer
129 views

Are there examples of animals being sexually attracted to another species more than to their own?

I just thought that from the perspective of a female domestic cat, a male bobcat probably looks like the archetype of a perfect mate. As tall, strong, muscular and mighty as it possibly gets. Clearly ...
1
vote
0answers
42 views

Why do I have 95% of chimpanzee's DNA, and only 2% of Neanderthal's DNA? [duplicate]

Excuse me if it is a question with a simply answer, but I don't understand these discoveries, looking a discrepancy from my unknowledge of genetics: I have 95% of Chimapanzee's DNA, and, I have [...
0
votes
1answer
40 views

Can prawns and lobsters live out of water for more than a day? [closed]

Can prawns and lobsters live out of water for more than a day or they will die like fishes after sometime?
0
votes
1answer
44 views

flavivirus virus genome, methylated guanine

I'm looking at the sequence of a flavivirus virus genome (mRNA). Kindly see the link MH900227.1. How can I identify the Guanine nucleotide that is methylated in the capping process? Thanks,
1
vote
2answers
124 views

What species is this? What the fruit?

The berries of the fruit are sweet. The tree is growing in Israel.
4
votes
2answers
97 views

What could humans do to “see” what dogs smell?

We're able to see a lot of things using computers that we can't see normally: yellow-green, UV light, X-rays, etc. What do we have that harnesses the ability to "see" what dogs smell (e.g., harnessing ...
2
votes
1answer
51 views

Why doesn't chloride cause high blood pressure?

Assuming osmotic pressure is the (main?) culprit, why isn't the chlorine ion loose in your body after eating salt considered equally responsible for hypertension? I have searched Google and Wikipedia,...
1
vote
0answers
16 views

Length at which a branch 'branches'?

An image from this question (and originally from Karl Niklas' computer model) has prompted the following question: The branches in this tree divide with increasing frequency as we progress from the ...
0
votes
1answer
33 views

Parasite? or a possible home infestation?

I found this bug on my bed tonight. It's smaller than a sesame seed. 6 legs and 2 antenna. Is this causing my dog and I to itch? Should I be concerned?
0
votes
0answers
24 views

Gametogonium vs primary gametocyte?

I've been trying to understand meiosis, and I'm confused about the difference between a gametogonium and a primary gametocyte. They are both diploid and I understand that the primary gametocytes are ...
1
vote
0answers
34 views

What is the chemical structure of myosin? [closed]

What is the chemical structure of myosin? Specfically, what functional groups or monomers are they made of?

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