Briefly explain about type specimens, Biology

Assignment Help:

Q. Briefly explain about Type Specimens ?

The specimens on which the names of the species are based are kept as type specimens. Do not replace these specimens because these will serve as reference material for the species identified, Store these specimens in safe and standard museums separately from other general collection and handle them with great care, If you receive a request from other coworkers, loan these specimens to qualified I specialists and label them properly. Send them by safe and efficient means of transport. If you gift the type collection to other workers or to any museum, you still retain control and possession over this collection for your life time. You can also label I type specimens as "holotypes". If all the original specimens and even their duplicates (isotypes) are lost or destroyed by fire or some other accident, you can collect the specimens afresh and name them as "neotypes". You should remember that type specimen is the nucleus of a taxon and foundation of its name. Because of their value type are given special care by curators of herbaria, and they do not permit their being sent out on loan to other botanists or institutions.

While examining the herbarium specimen every care is to be taken in shifting the herbarium sheet. It should be lifted with the hands so that it does not bend. Do not turn over the herbarium sheets like the pages of a book. It should be lifted with both the hands and kept over the other. If you do not handle these sheets properly there is every chance of damage to specimen.


Related Discussions:- Briefly explain about type specimens

Mitochondria, MITOCHONDRIA  (Singular-  MITOCHONDRION) These are cons...

MITOCHONDRIA  (Singular-  MITOCHONDRION) These are conspicuous, hollow  sac liked  cell organelles found in all eukaryotic  cells except  mature  red  blood  corpuscles RBC s

Explain the catabolic responses, Explain the Catabolic Responses? Hormo...

Explain the Catabolic Responses? Hormonal responses during the hyper inetabolic phase of infection are same as in case of injury. Serum cortisol levels are elevated, glycogen i

Desscribe formation of sperm cells from germ cells, Q. Indicating the name ...

Q. Indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be described? The formation of spermatogenesis or sperm

Explain the term tracheostomy, Explain the term Tracheostomy ? If the d...

Explain the term Tracheostomy ? If the duration of mechanical ventilation is likely to be prolonged, it is wise to do an early tracheostomy. Otherwise, a tracheostomy is usuall

Explain adverse effects of voriconazole, Adverse Effects of voriconzole ...

Adverse Effects of voriconzole Transient visual disturbances, including blurred vision, photophobia and altered perception of color or image, are common with voriconazole. Rash

Define the guidelines for calculating ideal body weight, Define the Guideli...

Define the Guidelines for Calculating Ideal Body Weight? What is the ideal body weight for me? Am I obese? Am I underweight? These are the questions that must have come to your

Define the glucose tolerance test, Q. Define the Glucose Tolerance Test? ...

Q. Define the Glucose Tolerance Test? In Glucose Tolerance Test (GTT) if the blood sample is to be taken in the morning, patient is advised to follow fasting instructions i.e.

How do contraceptive pills generally work, How do contraceptive pills gener...

How do contraceptive pills generally work? Contraceptive pills generally have the hormones estrogen and progesterone. If taken daily from the 4th day after menses the abnormal

Explain the anabolic phase - dietary management for burns, Explain the Anab...

Explain the Anabolic Phase - Dietary Management for Burns? During this period the patient is well hydrated and the reactions due to metabolic stress are under control. The pati

Define starch gelatinisation, Starch Gelatinisation Starch is insolubl...

Starch Gelatinisation Starch is insoluble in cold water but in warm water it swells until its gelatinization temperature begins to lose its structure and leaches out its  8con

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd