This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Some researchers claim that sponge genomes have homeotic genes, but no Hox genes (Read 1204 times)

hummingbird

  • Sr. Member
  • ****
  • Posts: 324
on: Aug 2, 2013
Some researchers claim that sponge genomes have homeotic genes, but no Hox genes. If true, this finding would
A) strengthen sponges' evolutionary ties to the Eumetazoa.
B) mean that sponges must no longer be classified as animals.
C) confirm the identity of sponges as "basal animals."
D) mean that extinct sponges must have been the last common ancestor of animals and fungi.
E) require sponges to be reclassified as choanoflagellates.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Celeste on Mar 7, 2019

geoffrey

  • Hero Member
  • *****
  • Posts: 880
Reply #1 on: Aug 3, 2013
Best answer would be C.


hummingbird

  • Sr. Member
  • ****
  • Posts: 324
Reply #2 on: Aug 7, 2013
Great help lol Thanks


« previous next »
 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
MHC genes and expression. MHC genes and expression.
Mutations in posterior Hox genes (HOXD13 in this case) in humans Mutations in posterior Hox genes (HOXD13 in this case) in humans
Adult sponge, with a porous, asymmetrical body. Adult sponge, with a porous, asymmetrical body.
Phenotype distributions with additive genes Phenotype distributions with additive genes
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library