« previous next »

Author Question: The phenomenon of fusion is likely to occur when, after a period of geographic i (Read 638 times)

j_sun

  • Sr. Member
  • ****
  • Posts: 384
on: Jul 11, 2013
The phenomenon of fusion is likely to occur when, after a period of geographic isolation, two populations meet again and
A) their chromosomes are no longer homologous enough to permit meiosis.
B) a constant number of viable, fertile hybrids is produced over the course of generations.
C) the hybrid zone is inhospitable to hybrid survival.
D) an increasing number of viable, fertile hybrids is produced over the course of generations.
E) a decreasing number of viable, fertile hybrids is produced over the course of generations.


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jul 12, 2013
Hey again :D

I'm guessing it's D. It makes sense.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

j_sun

  • Sr. Member
  • ****
  • Posts: 384
Reply #2 on: Aug 31, 2013
Sick :D Thanks


« previous next »
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
Summary view of the light reactions as they occur in the thylakoid Summary view of the light reactions as they occur in the thylakoid
Embryonic Period Embryonic Period
Fetal Period Fetal Period
Embryonic Period - lacunae Embryonic Period - lacunae
Video: Structures that affect circulation - kidneys, blood volume and venous tone

For a complete list of videos, visit our video library