« previous next »

Author Question: Recent research has shown that pollination requires that carpels recognize polle (Read 502 times)

curlz

  • Hero Member
  • *****
  • Posts: 538
on: Aug 14, 2013
Recent research has shown that pollination requires that carpels recognize pollen grains as "self or nonself." For self-incompatibility, the system requires
A) the rejection of nonself cells.
B) the rejection of self cells.
C) carpel incompatibility with the egg cells.
D) that the flowers be incomplete.
E) the union of genetically identical sperm and egg cells.


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Aug 22, 2013
I know it's B,

Shine bright :)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

One of the reasons I went to Cambodia was to interview a feral child—the boy shown here—who ... One of the reasons I went to Cambodia was to interview a feral child—the boy shown here—who ...
Shown here is Sigmund Freud in 1931 as he poses for a sculptor in Vienna, Austria. Although Freud ... Shown here is Sigmund Freud in 1931 as he poses for a sculptor in Vienna, Austria. Although Freud ...
The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ... The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ...
Recent history of biochemistry shown by the introduction of new techniques. (part 2) Recent history of biochemistry shown by the introduction of new techniques. (part 2)
Research Design in Clinical Psychology Research Design in Clinical Psychology
Split-brain patients were shown composite photographs Split-brain patients were shown composite photographs
Video: Wound Repair Animation

For a complete list of videos, visit our video library