Punnett square

To understand how gametes carry specific traits from parents to offspring, first, we need to understand a few scientific terms. Gametes are sex cells present in both sperm and ovum and are responsible for combining to form a zygote or offspring. An allele is a variant of a given gene most genes have two alleles, one of which is dominant the other recessive. Homozygous means that a gamete contains a like pair of alleles and heterozygous means the alleles carried by the gametes are different. You have

strength and structure to skin, bone, blood vessels, and other internal organs. It affects about 1 in 5,000 people. This disorder is usually, but not always, dominant. Some types of the 11 types of EDS are dominant and some are recessive. This Punnett square diagram demonstrates the heredity of the syndrome. Ehlers-Danlos syndrome is one of several disorders that can affect the body in similar fashion, so doctors need to make a differential diagnosis to ensure that it is not something else

phenotypic variation within them. Predicting that the parent plant was heterozygous with the first generation also displaying heterogeneous characteristics of non- purple stem/ Green leaves. And discovering that the null hypothesis was rejected for the chi-square being less than 5% meaning the observed phenotypes were due by chance. Introduction The Wisconsin fast plant also known as the Brassica rapa belongs to the crucifer family of plants, closely related to cabbages, turnips, broccoli and other

MENDELIAN GENETICS DEFINITION OF TERMS * Genetics – the study of heredity and variation * Heredity – the transmission of traits from one generation to another, from parents to offspring; the protoplasmic continuity between parents and offspring * Variation – any difference existing between individuals of the same species * Chromosome – rod-shaped body in the nucleus of eukaryotes and prokaryotes that contains the hereditary units or genes seen particularly during cell division

Gregor Mendel once said, “My scientific studies have afforded me great gratification; and I am convinced that it will not be long before the whole world acknowledges the results of my work.” Mendel was a well-educated man who gravitated towards physics and math. His research was conducted over roughly 10 years(Gregor Mendel - Botanist, Scientist - Biography.com. (n.d.). Retrieved October 24, 2016, from http://www.biography.com/people/gregor-mendel-39282#!). Gregor Mendel is the reason we now know

When I was first introduced into the world of health science and biology as a 6th grader I loved it. The idea of traits being passed on from generation to generation fascinated me. When we began the simplistic practice of Mendelian genetics and punnett squares it gave me a broader understanding of the concept of genetics. Since this topic is so fascinating to me, I want to explore genetics in greater depth. Specifically population genetics; why does the frequency of alleles change over time and how

do simple breeding analyses with the white-eye fruit fly. This experiment began with a test cross between the white-eyed fly with normal red-eyed females. The results in the first generation was all red eyes. This was shown through the use of Punnett squares. However Morgan didn’t stop there, he took the male and females from the first generation and test crossed them again. This time, the second generation resulted with some flies with the white-eyed trait along with some red-eyed trait. Morgan noticed

A DNA molecule is composed of a continuous string of deoxyribonucleotides. These nucleotides are composed of 5-Carbon sugar (deoxyribose), Nitrogenous base Adenine, Thymine, Guanine, Cytosine, the phosphate group. DNA is usually a double-helix and has two strands running in opposite directions. Each chain is a polymer of subunits called nucleotides. Each strand has a backbone made up of sugar molecules linked together by phosphate groups. The bases are leaning perpendicularly to the helix axis. They

Helen of Troy is one of the most beautiful demi goddesses out there but she seems to have two fathers. Zeus and Tyndareus are both considered to be partly her father. Throughout this essay, the genetic biology of Helen, Tyndareus, Zeus and Leda as well as anyone who could have an effect on her phenotype. We will conclude by stating which of Zeus and Tyndareus is more closely related to her and as a result being her “real” father. Greece will also be covered in relation to these events as well as

Abstract: The basis of genetics were established by Gregor Mendel, an Augustinian monk in the mid to late 1800’s. Through the observations from cross-pollinating pea plants, Mendel was able to discover the basic laws of inheritance. Years later genetics would be studied on a multitude of organisms, some more than others. Drosophila melanogaster or the common fruit fly has been studied in depth for its great advantages, such as size, reproduction rate, ease of care and inexpensive room and board.