Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies


Genetic Observations Through The Studies of Hybrid Corn, Single Gene Human Traits,
The basic foundation of modern genetics was led by Gregor Mendel (Corcos,
1993). Mendel was not the first to experiment with heredity, and our Lyman
Briggs biology class will not be the last to deal with genetics. Genetics is
the science of heredity. In our lab, we had three main objectives. First, we
evaluated our data on monohybrid and dihybrid corn cross seed counts against
Mendel’s theoretical expectations of independent assortment and the segregation
of alleles. Next, we used the Hardy-Weinberg Theorem to provide a theoretically
expected value for allele frequencies for single human gene traits. ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

traits
for the P generation, F1 generation, and F2 generation. The P generation is the
original true-breeding parents. Their hybrid offspring is the F1 generation,
the first filial. The F2 generation is the second filial and is the self-
pollination of the F1 hybrids. It was predominantly his research on the F2
generation that led to Mendel’s Law of Segregation and Law of Independent
Assortment (Campbell, 1996).
Mendel’s Law of Segregation states that alleles sort into separate
gametes. He formed this through performing monohybrid crosses. The F2
generation will have a 3:1 phenotypic ratio. By considering more than one trait
Mendel formed his Law of Independent Assortment. He questioned whether traits
were inherited independently or dependently. By performing dihybrid crosses he
found that genes are independent and will form all possible combinations .
Crossing two different traits resulted in a 9:3:3:1 phenotypic ratio (Campbell,
1996).
Thomas Hunt Morgan also had ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.


Already a member? Login

of 497, and an expected value of 451.5; and su=
wrinkled seeds with an observed value of 105, and an expected value of 150.5.
The chi-squared value was 18.35, this value didn’t correspond with any of the
given probability values. The Null hypothesis with a 3:1 phenotypic ratio was
rejected (see figure 1). Hence, the observed number of smooth seeds versus
wrinkled seeds is not different from the expected 3:1 ratio for a monohybrid
cross (see table 1).
A dihybrid cross was used to find the genotypes of potential offspring
regarding two traits. The offspring possibilities were SuP=smooth, purple seeds
with an observed value of 577 and an expected value of 617.6; Sup=smooth, yellow
seeds ...

Succeed in your coursework without stepping into a library.
Get access to a growing library of notes, book reports,
and research papers in 2 minutes or less.


CITE THIS PAGE:

Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies. (2004, March 25). Retrieved November 27, 2021, from http://www.essayworld.com/essays/Genetic-Observations-Through-Studies-Hybrid-Corn/5121
"Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies." Essayworld.com. Essayworld.com, 25 Mar. 2004. Web. 27 Nov. 2021. <http://www.essayworld.com/essays/Genetic-Observations-Through-Studies-Hybrid-Corn/5121>
"Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies." Essayworld.com. March 25, 2004. Accessed November 27, 2021. http://www.essayworld.com/essays/Genetic-Observations-Through-Studies-Hybrid-Corn/5121.
"Genetic Observations Through The Studies Of Hybrid Corn, Single Gene Human Traits, And Fruit Flies." Essayworld.com. March 25, 2004. Accessed November 27, 2021. http://www.essayworld.com/essays/Genetic-Observations-Through-Studies-Hybrid-Corn/5121.
JOIN NOW
Join today and get instant access to this and 50,000+ other essays


PAPER DETAILS
Added: 3/25/2004 02:47:25 AM
Category: Science & Nature
Type: Premium Paper
Words: 1737
Pages: 7

Save | Report

SHARE THIS PAPER

SAVED ESSAYS
Save and find your favorite essays easier

SIMILAR ESSAYS
» The Writings Of David Foster Wa...
» A Look At Wildlife Through The ...
» The Unity Of The Mind And Body
» A Murderer's Journey Through Th...
» God Speaks Through The Mouths O...
» Creationism Vs Evolution: Throu...
» Animal Farm: Communism Through ...
» The Use Of “Foil” Characters In...
» The Effects Of Anabolic Steroid...
» The McDonaldization Of Society
Copyright | Cancel | Contact Us

Copyright © 2021 Essayworld. All rights reserved