Bio30
ABSTRACT The effect of radiation to the production and growth of corn (Zea mays) w studied by irradiating the corn kernels with different doses (0, 10, 30, and 50 kilorad) of gamma rays. Ten kernels of corn was planted for each doses starting with the control one up to the 50 kilo rad. Each day it was observed, measured, and count the corn plants that grow and died. During the first day of observation, there are six corn plant that grow in the control, 10, and 30, and there is no plant that grow in the 50 dose, while during the last day of observation the number of plant grow decreases in 30 and 10 doses. Thus, as the dose of kilorad increases the least possible of the plant to grow and more mutations is happening to that plant.
INTRODUCTION Mutations can happen to all organism: human, plants, animals, even the bacteria, and also with the microbes. Mutations can be good or bad, it depends on what type of mutations happens to that organism. Mutations can happen anytime or anywhere. It can be control or occur naturally. According to M.S. Mendioro, R.P. Laude, A.A. Barrion, M.G.Q. Diaz, J.C. Mendoza, and D.A. Ramirez (2010), Mutations are changes in the genetic material that are heritable and essentially permanent. Mutations either may be spontaneous, or induced by physical or chemical agents. Mutations, in general, are classified as either chromosomal mutations or gene mutations. Induced mutation is mostly use by plant breeders to produce crops that has desirable traits, like resistant to diseases and insects. And to increase genetic variation of different species. Induced mutation can occur in different ways, like exposing the organism in a radiation, or by using chemical agents. Treatment using a radiation can induce point mutations (changes in a single nucleotide) or deletions (loss of a chromosomal segment). Corn is a grain domesticated by people during the ancient times. The plant has two types of flowers: staminate or the
INTRODUCTION Mutations can happen to all organism: human, plants, animals, even the bacteria, and also with the microbes. Mutations can be good or bad, it depends on what type of mutations happens to that organism. Mutations can happen anytime or anywhere. It can be control or occur naturally. According to M.S. Mendioro, R.P. Laude, A.A. Barrion, M.G.Q. Diaz, J.C. Mendoza, and D.A. Ramirez (2010), Mutations are changes in the genetic material that are heritable and essentially permanent. Mutations either may be spontaneous, or induced by physical or chemical agents. Mutations, in general, are classified as either chromosomal mutations or gene mutations. Induced mutation is mostly use by plant breeders to produce crops that has desirable traits, like resistant to diseases and insects. And to increase genetic variation of different species. Induced mutation can occur in different ways, like exposing the organism in a radiation, or by using chemical agents. Treatment using a radiation can induce point mutations (changes in a single nucleotide) or deletions (loss of a chromosomal segment). Corn is a grain domesticated by people during the ancient times. The plant has two types of flowers: staminate or the
Cited: Mendioro, M.S., R.P. Laude, A.A. Barrion, M.G.Q. Diaz, J.C. Mendoza and D.A. Ramirez. 2010. Genetics Laboratory Manual.12th ed. San Pablo City: 7 Lakes Printing Press. page 101. Ramirez, D.A., M.S. Mendioro and R.P. Laude. 2010. Lectures in Genetics. 9th ed. San Pablo City: 7 Lakes Printing Press. page 163.