Objectives
Download
1 / 6

Objectives - PowerPoint PPT Presentation


  • 98 Views
  • Uploaded on

Objectives. Evaluate models that illustrate the origin of variation in a population. Last time: What are the sources of genetic variation?. What are the sources of new alleles and new combinations of alleles in a population of snails? Random mutation; Sexual reproduction;

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Objectives ' - britanni-guerrero


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Objectives

  • Evaluate models that illustrate the origin of variation in a population.


Last time what are the sources of genetic variation
Last time: What are the sources of genetic variation?

What are the sources of new alleles and new combinations of alleles in a population of snails?

Random mutation;

Sexual reproduction;

Crossing-over in meiosis;

Gene flow.


Last time modeling the origin of variation
Last time: Modeling the origin of variation

In your groups:

Model the origin of variation for one of the traits you observed in the snails. Make your

model context-specific.

  • What structures should you include?

  • What is the function of this model?

Turn in your work (one model per group)


Origin of

variation

Time 1

Time 2


Fig 17 4

Gene 2

DNA

molecule

Gene 1

Gene 3

Fig. 17-4

DNA

template

strand

TRANSCRIPTION

mRNA

Codon

TRANSLATION

Protein

Amino acid


Fig 17 23b

Wild type

3

5

DNA template

strand

5

3

5

3

mRNA

Protein

Fig. 17-23b

Stop

Amino end

Carboxyl end

T instead of C

5

3

5

3

A instead of G

3

5

Stop


ad