Can acidic colors be used for chromosome staining?

Many of the colors used to chromosome staining are alkaline colors (for example carmine). Are colors that have acidic properties also capable of chromosome staining?

11 December 2019 8,626 2 View

What diffrention is there between morphology of Eupyrene and apyrene sperm?

in many insect including Lepidoptera, there are two kind of sperm: Eupyrene and Apyrene. how can we distinguish two kind of sperm in pictures?

01 February 2018 3,473 4 View

Cell and chromosome?

I am studying the cell and chromosome of Trichogramma(Hym.: Trichogrammatidae). I used of colchicinfor the cessation of cell division and acetic- orcein for staining of them. I got the images of...

11 December 2016 6,574 9 View

Do you have any experience or any papers about the quartet method?

04 May 2015 3,361 4 View

How many methods and model are there in molecular clock?

I know we have different of models and methods in molecular clock, but I am not sure how many of them we have? (I need a classification of them.)

10 November 2014 3,813 2 View

What is the best method for calculate of evolution in insect?

I want to study "speed of evolution" and i need a simple and exact method that use in melocular clock.

09 October 2014 8,143 3 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View

Can I follow Researchers from Teaching and testing areas?

I want Researchers from Educational Measurement and Evaluation, relating to teaching, learning , academic performance and test validation

18 February 2021 4,757 13 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

How to consider effects of rapid warm adaptation in modeling of ecological impacts of warming?

I would highly appreciate it if my fellow ecologists (biologists) provide their opinion on the thoughts below [esp., shortly tell us which path may be more effective, if they know another way, if...

15 February 2021 3,642 6 View