Theories of ageing, Biology

THEORIES OF AGEING -

1.       Compromise theory.

2.        Wear & tear theory.

3.       Somatic mutation theory.

4.       Immunity theory - Thymus becomes less active

5.       If matabolic rate is high, die sooner.

Gerentology deals with age of animal.

Posted Date: 10/4/2012 5:56:22 AM | Location : United States







Related Discussions:- Theories of ageing, Assignment Help, Ask Question on Theories of ageing, Get Answer, Expert's Help, Theories of ageing Discussions

Write discussion on Theories of ageing
Your posts are moderated
Related Questions
Define Growth Studies for studying Nutrient Requirement? Nutrient requirements of infants and young children are estimated by studying the rate of growth of healthy children an

Explain Lipid Formulations Three lipid formulations of amphotericin B are marketed in the US: amphotericin B lipid complex (ABLC, Abelcet), liposomal amphotericin B (L-AmB, AmB

Posterior Maxilla Posterior maxilla has very poor quality of bone demanding special consideration in implant placement:  Increasing the number of implants to decrease the cr

Q. Factors Affecting Normal Blood Sugar Levels? Earlier in our discussion, we learnt that insulin is the most important factor responsible for normal blood sugar levels. Now we

Define Stage - Parts of the Microscope? It is a fixed platform positioned about halfway up the arm and provide surface for keeping the slide. Slide is held in position either b

Explain the Features of Alternaria? 1. Alternaria colony is wooly and compact. Underside is very dark coloured. Colony colour is grayish green or black with gray edges rapidly

Define the Disorders due to the iodine deficiency? Mild goitre, i.e., a larger thyroid gland than normal. The mildest form of goitre ranges from those only detectable by to

Define Sample Titration for Saponification Number of Fats? Measure 2 ml of oil with the help of a pipette and transfer this oil to a 250 ml conical flask. Add 40 ml of alcoholi

Each gene has a characteristic mutation rate. Mutation rates are often described as an average per gene basis. For instance, Drosophila has one detectable mutation per 10,000 loci,

Q. What is the chemical equation of photosynthesis? The chemical equation of photosynthesis is given below: 6 CO 2 + 6 H 2 O + light --> C 6 H 12 O 6 + 6 O 2