« previous next »

Author Question: The reason that paralogous genes can diverge from each other within the same gen (Read 815 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 14, 2013
The reason that paralogous genes can diverge from each other within the same gene pool, whereas orthologous genes diverge only after gene pools are isolated from each other, is that
A) having multiple copies of genes is essential for the occurrence of sympatric speciation in the wild.
B) paralogous genes can occur only in diploid species; thus, they are absent from most prokaryotes.
C) polyploidy is a necessary precondition for the occurrence of sympatric speciation in the wild.
D) having an extra copy of a gene permits modifications to the copy without loss of the original gene product.


penguins

  • Hero Member
  • *****
  • Posts: 903
Reply #1 on: Jul 15, 2013
Easy! It's D. Bye for now :D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Linked Genes and Linkage Mapping Linked Genes and Linkage Mapping
Partial map of disease genes on human chromosome 21 Partial map of disease genes on human chromosome 21
Cross-regulatory interactions among gap genes Cross-regulatory interactions among gap genes
Evolution of genes derived from the cyanobacteria-like endosymbiont Evolution of genes derived from the cyanobacteria-like endosymbiont
Checkpoint Genes in Action Checkpoint Genes in Action
Enhancer trapping to reveal expression patterns of endogenous genes Enhancer trapping to reveal expression patterns of endogenous genes
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library