Traits and Genetics Essay

Traits get passed down from one generation to the next through Meiosis (cell division), where each parent gives you one Gene for each trait.

3. When Mendel transferred pollen from one pea plant to another, he was ___ the plants.

The “Brassica rapa” is a fast plant known as the field mustard. This plant is well known for its rapid growing rate, which makes it an easy breeding cycle and easy to pollinate. In giving so this makes “Brassica rapa” a great participant for testing Gregor Mendel’s theories of inheritance. The “Brassica rapa” acts like a test subject in testing cross-pollination giving the understanding to the dominant allele of colored stems. There are different colors that are visible on the stem that are above the soil; the colors vary from green to purple. P1 seed was ordered, germinated and cross-pollinated until germination of the next off spring of plants were also done. It was

There is a perplexing gap between the understanding that babies are born with innate characteristics and the understanding that they inherit these characteristics from their parents. Besides, the puzzling gap between the understandings that a baby is born with inborn characteristics that they inherit from their parents (Harris, 2000).

The variables in this lab were different than the average science experiment. Instead of affecting the experiment to prompt different results, we just had F1 generation plants produce offspring so that we could study their specific traits. By looking at the variables, we can determine if they fit the Mendelian ratio and see if genes are linked on a chromosome.

30. What attributes of the garden pea plant made it an excellent organism for Gregor Mendel’s genetic studies?

METHODS/PROCEDURES: In the beginning of the experiment, pea seeds were used in order to perform the experiment. It was extremely important to acquire good, dry, and viable seeds so the process of germination could occur. A handful of these healthy seeds worked best in assisting the experiment. The seeds ability to germinate was a vital information needed to determine the outcome of the experiment.

Genetics shows us that we inherit traits in many different ways. A perfect example to show us the different ways we inherit traits is fruit flies. Fruit flies are commonly used by scientists to conduct genetic experiments due to their reaction to the experiment being very quick. Scientists mainly look at how the flies inherit basic traits such as brown body color, or red eyes(basic trait flies are known as wild-type flies) from their parents, but sometimes they can come across some abnormal traits. Some of these abnormal traits include having a yellow body color or having curly shaped wings and have made scientists wonder how the flies have inherited these specific traits. So how do the flies inherit

Gregor Johann Mendel, the father of genetics, was born in 1822. He was a priest and scientist who became famous for his work and studies on the inheritance patterns using pea plants. Gregor Mendel used pea plants known as Pisumsativum in his research where he developed two fundamental laws of genetics known today as the “Law of segregation”, and the “Law of independent assortment” (Hartl, 1992). The “Law of segregation” states that when an individual produces a gamete, the copies of a given gene separate in which each gamete receives only one copy of that gene. The phenotypic ratio in the F2 generation according to the “Law of

In this lab the plant being used was the common garden pea (Pisum sativum), the first thing done was to scan the phenotypes of each parental and first generation offspring; which was homozygous dominant ( P1), homozygous recessive (P2) for parental types, and heterozygous (F1) for first generation offspring. Next step is to indicate the F2 sample by using a “+” for dominant and “-” for recessive phenotype. This was done by making a chi chart that expressed all the phenotype characteristics for Parental traits to 60 generations of offspring traits. Afterward data was combined with class data to determine the statistical analysis for all the samples. In addition to analyzing the morphological traits, statistical data was determined by determining the expected number of plants for seed color, Seed texture, Stipules, leaflets, Height, and Tendrils. That was calculated by

Heredity – the transmission of traits from one generation to another, from parents to offspring; the protoplasmic continuity between parents and offspring

Lets start by looking at the cell and the source of heritable traits. We know that all organisms are made up by cells and that new cells can only spring from existing cells. Cell growth depends upon the production of new cells and within each cell exists DNA. DNA contains the hereditary instructions need for each organism to grow and develop. Every

Genes build the phenotype of humans as well as the underlying genotype. Competition between cultural genes leads to varied success of genetic determinism. It can therefore be said that learnt traits such as those espoused within a specific culture, can produce what may seem to be the genetic genotype of an individual. Genes are not always advantageous in the

Another man who contributed greatly to the study of genetics, was an American biologist by the name of Thomas Hunt Morgan. He studied the ways that characteristics were passed from one generation of fruit flies to the next. He learned that the genes in fruit flies behaved in the same way as the genes in pea plants. He also noticed that certain genes were inherited together more often than random chance should allow.

There has been a lot of scientific research done into genetics, genetic crosses and inheritance enabling us to understand why we have the certain characteristics and traits that we do, how we inherited them and how we can pass them on. It’s because of this research that we can understand and learn about our genetic makeup and why it effects the way we are.