Theories to explain fine structure of chromosome, Biology

Assignment Help:

THEORIES TO EXPLAIN FINE STRUCTURE OF CHROMOSOME

(1) Multistranded theory

Steffenson 1959 - each chromosome composed of two chromatids (Half Chromosome) and each chromatid composed of 16 DNA molecules.

(2) Folded fibril theory

Du Praw 1965 - Chromosome consist of single DNA variously folded to form two Chromatids.

(3) Unineme theory

Hans Ris (1967) - Each Chromosome consists of two chromatids and each chromatid have one DNA molecule.

This theory is most acceptable as it is supported by meiosis and crossing over studies.


Related Discussions:- Theories to explain fine structure of chromosome

What is bigunnides, Q. What is Bigunnides? Bigunnides: They are atni d...

Q. What is Bigunnides? Bigunnides: They are atni diabetic drugs which do not affect the output of insulin. These are preferred to sulphony lureas because they do not cause we

Determine reagents for determination of protein content, Determine Reagents...

Determine Reagents for Determination of Protein Content Using Biuret Method? Collect the following reagents to conduct the experiment: 1. 0.2 N NaOH solution - Dissolve 8 g

What body system hiv impairs, Given that most AIDS victims die from overwhe...

Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?

How computed tomography helps the doctors, Explain briefly how computed tom...

Explain briefly how computed tomography (CT) helps the doctors in pinpointing the defects in the patient's body

Asexual reproduction, Asexual Reproduction Asexual reproduction is als...

Asexual Reproduction Asexual reproduction is also known agamic reproduction because there is no involvement of gametes in it. Asexual methods of reproduction are

Explain cell cycle , The life of a eukaryotic cell can be explained ...

The life of a eukaryotic cell can be explained as a cell cycle. Mitosis and cell division happens in the M phase that lasts for only about 1 h. This is followed by the G1 phase whe

Describe the features common in ventricular outflow, Describe the Features ...

Describe the Features common in ventricular outflow obstruction ? An ejection systolic murmur (ESM) due turbulent flow of blood through the obstruction. Hypertrophy of the cham

Explain the systemic antibiotic cover, Explain the systemic antibiotic cove...

Explain the systemic antibiotic cover The need for  systemic antibiotic cover should be considered. The original protocols recommended an antibiotic such as amoxicillin 250 mg

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