0
votes
0answers
11 views

Quantifying the number of fragments from RAD library

I have a series of single-end reads from a RAD library of 48 uniquely tagged individuals in fastaq format. The data comes from a small MiSeq run. I want to know the number of unique fragments per ...
1
vote
1answer
34 views

How do RBCs survive without a nucleus?

So, I was reading this question Why do mammalian red blood cells lack a nucleus? Now, I do not yet have the privilege to post a comment and so I am forced to create a new question to clear my doubt. ...
0
votes
0answers
10 views

Why can´t our dog bark with a high pitch while holding a stick in her mouth? [migrated]

When I throw sticks with our dog (a Swiss shepard) she usually barks at me with a high pitch when I´m about to throw the stick. Sometimes she still has another stick in her mouth and in that case her ...
1
vote
0answers
14 views

Viruses affecting transmission capability of mosquitoes

I've read about bacteria affecting the transmission capability of mosquitoes. For example: Wolbachia suppresses dengue transmission When mosquitoes were given antibiotics that decreased their gut ...
0
votes
0answers
13 views

What are the chances that a hemophiliac male and an unaffected, non-carrier female could have a baby that is a hemophiliac male? [on hold]

The hemophilia gene is located in the X chromosome, which male babies get there X chromosome from their mothers. So the chances of this male baby being hemophiliac is zero. Correct?
0
votes
0answers
34 views

What are some explicit examples of natural selection's predominat role in the origin of new species? [on hold]

I am taking an evolution course and I found examples in textbook that include examples of organisms that came into form long, long time ago. I could not directly relate their formation to natural ...
0
votes
1answer
29 views

How to use Transect-based sampling to select sample trees [on hold]

I was wondering if you help me how to use Transect-based sampling to select sample trees
-1
votes
0answers
32 views

Does washing salad *really* remove E-coli? [migrated]

I don't generally wash salad unless it looks dirty. It's not that I'm unaware of E-coli and pesticides etc, it's that I don't have any conviction that rinsing them with water will significantly remove ...
0
votes
1answer
31 views

How diverse are species in remote, isolated areas on Earth? [on hold]

If we consider land areas that have been largely isolated from each other from a human point of view, but with a similar climate – for example, a part of Europe and a part of Americas with a similar ...
3
votes
0answers
25 views

What constitutes FDA's First in Class designation for New Molecular Entities?

What constitutes a First in Class designation for new molecular entities? I've seen this term on FDA documents, as well as in databases (Chembl for example), but I was curious if there are any set ...
12
votes
1answer
1k views

Are these spider eggs?

I was pulling weeds in my backyard in Southern California, when I saw a spider over a white area on the underside of one of the leaves. It's staying right near the white spot. Are those spider eggs? ...
-1
votes
2answers
50 views

Wouldn't it be more efficient to let the kidneys flow into the intestines?

So I was thinking about how much fluids we lose when we pee. Then I realised that it would be much more efficient to remove the bladder and let it flow into the intestines so that the fluids can be ...
1
vote
1answer
26 views

What factors make a sequence evolve non-randomly?

On the wikipedia page about Fay and Wu's H, it talks about a non-randomly evolving sequence may be due to some selection acting or a selective sweep or population expanding/contracting. My questions ...
0
votes
1answer
21 views

Can cell division be stopped during prophase?

There are three known checkpoints which ensure proper division of the cell. These are: the G1 checkpoint, also known as the restriction or start checkpoint or (Major Checkpoint); the G2/M ...
-1
votes
0answers
14 views

No.of codons at A-site [closed]

If a protein consist of 20 Amino acids. The number of codons exposed at A-site of ribosomes will be: A) 20 C) 21 C) 22 D) 19
4
votes
1answer
12 views

How do centrioles auto-locate to opposite sides of cell during mitosis?

I realize that centrioles are made of 9 triplets of microtubulin wound together with a hollow core, and that they are responsible for the configuration of the spindle during mitosis. The spindle ...
0
votes
0answers
27 views

What is the name of the method used for solving the problem?

Problem: A Drosphila sp. heterozygous female of the X-linked recessive traits encoded by alleles a,b and c is crossed with a male that is phenotypically a,b and c. If offprings occur in the ...
0
votes
2answers
33 views

Optimum pH of Catalase

I am aware that certain organs in the body have specific pH environments to increase the activity of their enzymes. I'm also aware that enzymes only work at certain pHs due to the configuration of the ...
0
votes
0answers
21 views

Does too much salt in wound cause problems? [on hold]

OK, everyone has the experience of eating too much salt and getting a slight headache. But assuming somebody's injured and his wound (you can assume however large you want the wound to be) is soaked ...
0
votes
0answers
30 views

what type of random sampling method commonly used to select trees in a forest [on hold]

I was wondering if you can help me what type of random sampling method used to select trees in a forest
0
votes
1answer
14 views

What is DNA-cellulose chromatography?

I am going through a paper where they have done DNA-cellulose chromatography to study the interaction between protein and DNA. They are adding the protein to the column and eluting with high salt ...
0
votes
0answers
23 views

What Journals include raw experimental data in publication [migrated]

I was reading an article from Nature Immunology and found that the journal actually includes all the raw data for each figure. I found such practice very helpful, since we can re-analyze the raw data ...
7
votes
1answer
67 views

How do neurons find each other?

Neurons form complicated networks in brains, but their connections can't be random (at least not entirely). Brains function similarly among all members of individual species, and that functionality is ...
1
vote
0answers
29 views

What is the percentage of true bugs compared to all animal species on the plant?

Also, what is the percentage of True Bugs compared to the insect population? I’m writing a children’s book on bugs and I’m comparing the true bug to the insect. All population info seems to combine ...
1
vote
0answers
18 views

Is blunt end repair and A-tailing necessary when adaptors can be custom made?

I'm planning on creating a RADseq library, which naturally involves digesting genomic DNA following P1 adaptor ligation. I've read a few protocols that require any over-hangs resulting from ...
0
votes
0answers
20 views

Non-malignant cells can still be cancerous?

Say that I am classifying melanoma tumor cells and want to determine of this population which are malignant and which aren't. From a genetic and transcriptional perspective, I could characterize these ...
0
votes
0answers
17 views

Co-dependency between carbohydrates, fats and protein in the mammalian diet?

Following up from the question Are carbohydrates an essential component of human diet? I am interested in knowing more specifically how carbohydrates, fats and proteins are linked in the mammalian ...
0
votes
0answers
13 views

Dosage Compensation?

Why is there dosage compensation if you can have the Law of Dominance that can come into play? And if a chromosome is inactivated, then shouldn't people with chromosomal abnormalities be normal? ...
-3
votes
1answer
24 views

Is volume preserved in the usual photosynthesis reaction equation?

Is volume preserved in the usual photosynthesis reaction equation? 6CO2 + 6H20 --> C6H12O6 + 6O2 When I compute volume of LHS, I get 2.21 x 10^-19 cm^3 ...
5
votes
1answer
26 views

What happened to the gypsy moth epidemics in the Northeast US?

I remember that back in the 1980s, 1980-1984, gypsy moths were a veritable plague in the Northeast United States. They were literally everywhere. Sidewalks were covered with their squashed bodies (of ...
1
vote
0answers
16 views

Were Neandertals as Hairy as We Are?

What I mean to say regards facial and androgenic hairs. There are many theories as to why some people have both kinds of hairs, while others have one or the same and others still have neither. The ...
3
votes
0answers
84 views

Is a single cell “irreducibly complex”?

(sorry if the title seems like flame-bait - but it's a real question). I'm trying to understand what could have come before the first cell (What are the "minimum requirements" for a single ...
4
votes
0answers
98 views
+50

Why does human chromosome 19 have the second highest number of protein-coding genes?

While chromosome 19 only is the 19th largest autosomal chromosome, it contains 1440 protein-coding genes, and thus has the second highest number of protein-coding genes of any human chromosome. For ...
1
vote
0answers
46 views

If the liver can regenerate why can alcohol abuse permanently damage it?

The liver is a fairly unique organ in that it has the ability to regenerate itself even if parts of it are removed/damaged. It is a well known fact that continual alcohol abuse damages the liver and ...
0
votes
0answers
22 views

Bio Project, Housekeeping promoters, high C-G count, vs tissue specific?

I have a research biology project to do, one part that I'm doing is essentially comparing the sequences of different organisms and based on the sequences am describing whether that gene has a ...
0
votes
0answers
31 views

anabolism in plants

The question is as following: Which substance has the greatest contribution to the anabolism of glucose in plants. A- Oxygen (O2). B- Water (H2O). C- carbon dioxide (CO2). The official answer given ...
-3
votes
0answers
12 views

Whose Antibodies produced against allergens [closed]

I want to know answer in hurry bcoz 24 July is my test so I am prepared for neet entrance examination.so Pls help me
1
vote
1answer
55 views

Symmetry in animals [duplicate]

Is symmetry in animals due to DNA or natural selection? By symmetry, I mean the left side is an almost (not perfect) reflection of the right half. Is this due to DNA trying to balance the two half or ...
0
votes
0answers
14 views

Is artificial control over neural transmission possible?

We know that neurons transmits electrical signals. At the present we have instruments to observe neural transmissions, but is it possible to interfere in its transmission from outside electrical ...
-1
votes
0answers
7 views

How do I test if something will have an adverse effect on marine life?

I want to test a variety of different substances on water, but not with any life inside the water. How do I test if the substance will have a bad effect?
1
vote
0answers
13 views

Martian Abiogenesis?

In the Miller-Urey experiment the probability of the chemical origin of life under (hypothetical) early Earth atmospheric conditions were assessed. For that water, methane, ammonia, and hydrogen were ...
0
votes
2answers
42 views

How did scientists establish the reactions that occur in metabolism? [on hold]

How did scientists establish that macromolecules like proteins, carbohydrates and lipids are synthesized from other molecules with intermediate products by living cells. Did they observe this under ...
-1
votes
1answer
25 views

Product of reaction between HCl and bile [closed]

In the mammalian digestive system HCl is the main acid and bile is the main alkali. What is the product of the reaction between these two chemicals?
0
votes
0answers
19 views

How is signalling disturbed in trophoblastic cancer cells?

Trophoblastic cancer seems to be a form of growth that no longer responds to the neural signals which try to inhibit them. Can someone please explain whether experiments have been performed as to how ...
6
votes
2answers
71 views

RNA processing in eukaryotes

Why does post-transcriptional processing of eukaryotic mRNA involve addition of a 3' polyA tail, rather than one of polyU, -G, or -C?
3
votes
1answer
33 views

Crossing over : Holliday model

In this figure out of the two heteroduplexes formed one is considered to be non-recombinant product(left) and the other recombinant product(right). My question is despite the exchange of middle DNA ...
0
votes
0answers
9 views

Strategy for tree and shrub identification

I often find it difficult to identify trees and shrubs even though I have many handbooks and manuals on trees and shrubs in my area (New England). The typical problem is that the species is not in the ...
0
votes
1answer
14 views

Catalytic Triad of Serine Proteases

Is serine considered an acid in the catalytic triad involved in the mechanism of action of serine proteases? It is donating a proton to His but I am not sure if this really qualifies as an acid?
1
vote
0answers
16 views

Robertsonian translocation on the same chromosome

is there any big difference between Robert-son-i-an translocation between two 13 chromosomes comparing to a translocation between 13 and 14 chromosomes
-1
votes
0answers
43 views

Is there an evolutionary purpose for postpartum depression in human females? [on hold]

Essentially what the title says...It seems odd that at the very stage in which new life is supposed to be protected, we see new mothers at a higher risk for particular kinds of mental illness (...

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