Serendip is an independent site partnering with faculty at multiple colleges and universities around the world. Happy exploring!

Home › Bio 103, Lab 9: Mendel's Garden Revisited ›

Reply to comment

MarieSager's picture

one curly, one wild 2

Submitted by MarieSager on Wed, 11/14/2007 - 2:54pm.

one curly, one wild

2 curly, 2 wild 1:1 ratio

mated male curly with female straight= 2 straight 2 curly

mated curly with curly= 2 straight and 2 curly

2 curlys again = 1 wild, 1 wild, 2c, 2c (ratios)

THIS VIOLATES THE RULES!

why?

Well, we then explored the characteristic of true breeding and mated a male curly with a female curly. And found that there was a 2 (curly) : 1 (wild) ratio. Therefore, we hypothesized that culry wings are a recessive trait, and even more, if the genes start off as homozigous, then there will not be a 3:1 ratio. This is also true for starting with wild wings, because if you mate two wild winged flies, you will also NOT get a 3:1 ratio.

We then tried some other combinations, but many of these had 3:1 ratios.

Reply

To prevent automated spam submissions leave this field empty.
5 + 11 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

Remote Ready Biology Learning Activities

Scanning electron microscope image of SARS-CoV-2

Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.

Narrative is determined not by a desire to narrate but by a desire to exchange. (Roland Barthes, S/Z)

What's New? Subscribe to Serendip Studio