Mutation rates, Biology

Assignment Help:

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, that is, 0.01% per locus. In humans spontaneous mutation rates have been calculated for some of the dominant lethi1 genes such as retinablastoma, chondrodystrophy and Huntington's chorea. These genes have rates varying from 0.01% to 0.001% per locus which means that one out of 10,000 or 100,000 loci mutates. This is true of most of eukaryotic mutation rates which range from to per locus. Jn prokaryotes the rates may be much lower, ranging from 10-4 to 10-6 per locus. Mutations can also occur in reverse direction by which it is ineant that a mutant gene can mutate back to its wild type form. However, reverse or back mutation rates are much lower than the forward mutation rates.


Related Discussions:- Mutation rates

Explain about the manganese - micro minerals, Normal 0 false ...

Normal 0 false false false EN-IN X-NONE X-NONE

Point out some guidelines for breast-feeding, Point out some Guidelines for...

Point out some Guidelines for breast-feeding? 1) Follow demand feeding of the baby instead of a fixed schedule. 2) Initiate breast-feeding within 2 h after a normal delivery

What structure of the eye produces tears, Q. What structure of the eye prod...

Q. What structure of the eye produces tears? Lachrymal gland, which is a part of larger lachrymal apparatus, produces tears that flow over anterior surface of the eye. Most of

State the term - psychophysiology, State the term - Psychophysiology Th...

State the term - Psychophysiology This refers to the study of psychological theories using physiological measures. In other words, psycho-physiologists normally try to understa

Explain an overview of water soluble vitamins, Explain An Overview of Wate...

Explain An Overview of Water Soluble Vitamins? Vitamins, we already know, are classified by the materials in which they will dissolve. Fat-soluble vitamins -vitamin A, D, E a

Explain methods and vectors, Match each of the methods or vectors below to ...

Match each of the methods or vectors below to an appropriate form of gene therapy, assigning two methods or vectors to each form. Use each method or vector only once. Methods/v

Pyruvate carboxylase activation, Oxaloacetate has two main roles. It is an ...

Oxaloacetate has two main roles. It is an intermediate which is consumed in gluconeogenesis and it is also a key intermediate in the citric acid cycle where it fuses with acetyl Co

Substances that have to be excreted from the body, Name four substances tha...

Name four substances that have to be excreted from the body. Substances that have to be excreted from the body are:- A) Carbon dioxide, B) urea, C) uric acid, D) s

Phosphorus - mineral elements, PHOSPHORUS It is present in vegetables, ...

PHOSPHORUS It is present in vegetables, grains (oat metal, wheat meal), milk, eggs, cheese, meat, fish, etc. It helps in - (a) Like calcium it is a constituent of bones.

Define beriefly about the phytoestrogens, Define beriefly about the Phytoes...

Define beriefly about the Phytoestrogens? You may be aware of the surging interest in phytoestrogens (PE) especially in connection with osteoporosis. This section briefly discu

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