Define factors which may lead to errors in count, Biology

Assignment Help:

Define Factors Which May Lead To Errors in Count?

There are many factors, which may lead to errors in count.

(i) Counts may be low if the agar medium used in the technique does not support the microbial growth.

(ii) The hot agar used in pour plate may kill the cells, leading to low microbial count.

(iii) Low count may result if clump of cells is not broken up and microorganisms are not dispersed well.

(iv) Colony development also depends on incubation conditions and incubation time. Short incubation time may result in development of lesser colonies because different cells on plate grow at different time.

(v) It is difficult to count very small colonies and may give inaccurate count. For more accurate counts, a special colony counter can be used.


Related Discussions:- Define factors which may lead to errors in count

Mass dispersal - population dispersal, Mass Dispersal - Population Dispersa...

Mass Dispersal - Population Dispersal A population is inherently dynamic in nature since individuals are always leaving or entering the populations. But such changes normally

Explain diseases of pericardium, Q. Explain Diseases of pericardium? Pe...

Q. Explain Diseases of pericardium? Pericardium is the sac covering the heart. Pericardium consists of two layers-the visceral pericardium (epicardium) and the parietal pericar

Amniocentesis, Amniocentesis is a way of prenatal testing in which the amn...

Amniocentesis is a way of prenatal testing in which the amniotic fluid is withdrawn from the uterus by the help of a needle. The fluid and the fetal cells it contains are analyzed

Etiological factors involved in short bowel syndrome, Q. Etiological factor...

Q. Etiological factors involved in short bowel syndrome? The etiological factors involved in this disease are: • Anaemia • Osteoporosis • Stone formation • Decrease

Define about oxygen molecule, How many pairs of electrons do the two oxygen...

How many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each  other? Explain your answer. The oxygen atoms share two pairs of electrons, sinc

Process of behaviour change, 1. Awareness - First people become aware of a...

1. Awareness - First people become aware of a problem. 2. Acquire Knowledge and skills - Next, they gather knowledge and learn new skills. 3. Motivation - At the next stag

Determine the evaluation of the bone, Evaluation of the bone Evaluation...

Evaluation of the bone Evaluation of the bone -implant interface needs to be done by the following: Failures in Implant Dentistry 1) Implant mobility and discomfort 2)

How many people carry the allele, Phenylketonuria is a severe form of menta...

Phenylketonuria is a severe form of mental disability caused by a homozygous recessive allele. The condition affects about 1 in 10,000 neborn Caucasians. Estimate the frequency of

Necrobacillosis of liver, Necrobacillosis of liver It is a disease of ...

Necrobacillosis of liver It is a disease of cattle and lambs. The causative organism is Fusobacterium necrophorum. The condition does not usually cause any clinical symptoms i

The effect of light on the growth of stems, The effect of light on the grow...

The effect of light on the growth of stems (a)  Plant some seeds that grow rapidly like as oats, radish, bean or mustard seeds in two flower pots. When the seedlings are about

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