🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
10
answers
0
watching
384
views
8 Jan 2018

In some cases two species can hybridize. For example, Tigers andlions can hybridize to produce "Ligers".

Would it also be possible for humans and chimpanzees (or anyother species) to hybridize ? If not, what would be the likelycause of failure?

Why do some hybridization matings produce offspring, like theLiger, and some not? What mechanisms prevent hybridizations?

Watch
10
answers
0
watching
384
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Beverley Smith
Beverley SmithLv2
10 Jan 2018
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

2) Consider the large ground finch (Geospiza magnirostris) and the medium ground finch (Geospiza fortis). The males of these two species have different calls to attract females. These two species exist together on some islands (sympatric) but each also exist on some islands alone (allopatric). (12 points) a) In which populations do you think it is more likely to observe strong prezygotic reproductive isolation when attempting to hybridize these finches in the lab?(circle one)

Sympatric populations or Allopatric populations

b) Explain the reasons for your expectation in (a). In your answer, be sure to fully explain the underlying reason you expect prezygotic isolation to be stronger in one set of populations versus the other and discuss how you expect hybridization to affect the fitness of the parents and the resulting offspring involved in a hybridization event, being specific to these two species of ground finches.

Dinoflagellates are photosynthetic, they are the great producers of the ocean, phytoplankton. TThier chromosomes lack histones and they have two flagella of unequal lenghts. Some dinoflagellates are bioluminescent and some produce a pigment so that a proliferation of dinoflagellates may cause a 'red tide.' Humans do not directly consume dinoflagellates, but humans consume shellfish that consume dinoflagellates. Shellfish may concentrate certain neurotoxins produced by dinoflagellates and cause neurlogical symptoms in humans who consume those shellfish. Examples of dinoflagellates are Gymnodinium and Gonyaulax.

13. The toxins produced by dinoflagellates are heat stabile, so cooking does not prevent the possibility of shellfish poisoning. Make two recommendations to prevent consumption of dinoflagellate neurotoxins based on what you know, or pose two questions about what you would like to know. Amoebozoa have lobe like pseudopods for motility. Slime molds are classified in this group and will not be covered on any exam. Two examples are Naegleria and Entamoeba, pathogens.

Excerpts from “On the Tendency of Varieties to Depart Indefinitely from the Original Type,” by Alfred Russel Wallace [Read July 1st, 1858].

The life of wild animals is a struggle for existence. The full exertion of all their
faculties and all their energies is required to preserve their own existence and
provide for that of their infant offspring. The possibility of procuring food during
the least favourable seasons, and of escaping the attacks of their most dangerous
enemies, are the primary conditions which determine the existence both of
individuals and of entire species. These conditions will also determine the population of a species; and by a careful consideration of all the circumstances we may be enabled to comprehend, and in some degree to explain, what at first sight appears so inexplicable—the excessive abundance of some species, while others closely allied to them are very rare. ...

... It is also evident that most changes would affect, either favourably or adversely, the powers of prolonging existence. An antelope with shorter or weaker legs must necessarily suffer more from the attacks of the feline carnivora; the passenger pigeon with less powerful wings would sooner or later be affected in its powers of procuring a regular
supply of food; and in both cases the result must necessarily be a diminution of the population of the modified species. If, on the other hand, any species should produce a variety having slightly increased powers of preserving existence that variety must inevitably in time acquire a superiority in numbers. ...

Complete the chart below for the excerpt from Wallace’s paper. Provide examples of evolution by natural selection that Wallace used in his writing. Describe the species, the variations among individuals, the selective pressure, and how species change over time.

2 examples must be provided for each question and species.

Wallace —Natural Selection

Species:

What trait varies within the species?

What is the selective pressure? (In other words, what causes some individuals to produce more offspring than others?)

How would the population change over time?

Related Documents

BIO 200 Lecture Notes - Lecture 9: Assortative Mating, Polyploid, Macroevolution
harlequingerbil986
BIO 200 Lecture Notes - Lecture 9: Gene Flow, Adaptive Radiation, Disruptive Selection
indigoporpoise354
BIO 1300 Lecture Notes - Lecture 2: Megafauna, Y Chromosome, Shortwave Radio
olivefox459

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in