Physiology and biochemistry evidences, Biology

Assignment Help:

PHYSIOLOGY AND BIOCHEMISTRY -

  • Ample and concrete evidence of organic evolution are obtained from the functional activity and chemical composition of animals.
  • J.B.S. Haldane (1937) stated that final theory of evolution will see it largely as a biochemical process.
  • Protoplasm - Protoplasm is a physical basis of life. Each cell is composed of a colloidal substance called protoplasm. The chemical composition of protoplasm is fundamentally similar in all animals.
  • Chromosome - Chromosomes are common to all living cells. They have the same chemical composition in all animals. Each chromosome is formed of proteins and nucleic acids. This is because of a common ancestry.
  • DNA - In all animals DNA functions 'as the genetic material. It is formed of many small units called nucleotides.
  • Each nucleotide has similar bases and attachment in all organisms.
  • Chimpanzees and humans share more than 97 percent of their genes.
  • Some genetic differences of vertebrates as estimated by DNA hybridization are as follows -

Organisms                                                % of difference in DNA sequences

Human/Chimpanzee                                                  1.6

Human/Gibbon                                                         3.6

Human/Rhesus monkey                                              5.5

  • Thus it can be concluded that closest living relative of man is chimpanzee. It can be proved by antiserum test.
  • Enzymes - Enzymes are proteins of high molecular weight necessary for the digestion of food. Trypsin is a protein has the same structure and function form protozoa to man. Similar amylase splits starch and occurs from the sponge to man. The similarity of enzymes shows interrelationship between various animals.
  • Hormones - Hormones are chemical messengers secreted by the endocrine glands. Thyroxine secreted by vertebrates is similar in their structure and function. In frog it is essential for metamorphosis. Thyroxine deficiency in man can be treated with the thyroxine hormone of other animals.

Related Discussions:- Physiology and biochemistry evidences

Research to improve health care delivery, Research to Improve Health Care D...

Research to Improve Health Care Delivery: Today, much  of health  care  delivery  system remains  imitative  and intuitive rather than innovative,  creative or  scientific in

Electrocardiography, ECG: Myocardial ischemia is indicated by T-wave invers...

ECG: Myocardial ischemia is indicated by T-wave inversions. Left ventricular hypertrophy (LVH) criteria: R in aVL >13 mm R voltage in L1+ S III >25 mm S v1 + R v5 or v6

Nutrition information for two products, In this session's discussion board ...

In this session's discussion board provide links to the nutrition information for 2 products. The nutrition information should be the type you find on the side of a food product th

Planning of nursing care - hypospadias, Planning of Nursing Care Planni...

Planning of Nursing Care Planning of the nursing care depends on the decision of the surgery. The surgery may be performed in two stages depending upon the degree of the d

Segments that form the body of the tapeworm, Q. What are the segments that ...

Q. What are the segments that form the body of the tapeworm called? What is their function? The body of the tapeworm is made of segments called as proglottids. The proglottids

Isolation techniques, Differentiate between spread plating and streaking?

Differentiate between spread plating and streaking?

What is intracardiac repair of tetralogy of fallot, What is Intracardiac Re...

What is Intracardiac Repair of Tetralogy of Fallot ? Technique : The essential steps are: (I) relief of right ventricular outflow obstruction, and (2) closure of ventricular

Explain the term viruses, Normal 0 false false false EN...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

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