Essays on Guinea Pig

Patterns of Inheritance

A homozygous brown mink was crossed with a silverblue mink. Brown (B) is dominant to silverblue. There were 9 offspring. What color were they? (B) Two of the offspring were mated. What would the ratio of brown to silverblue offspring be? What fraction of the offspring will be homozygous brown? Heterozygous? Homozygous recessive?

Let B represent the allele for brown color and b represent the allele for silver blue

Punnet square between homozygous brown mink and silver mink homozygous brown mink X Silver mink bb X BB

All the 9 offspring were brown

Mating two of the offspring Punnet square showing f1 generation will be as follows Bb X Bb Ratio of brown to silverblue is 3: 1 Fraction of homozygous ...

DISCUSS THE ROLE OF ION CURRENTS IN DETERMINING THE SHAPE AND DURATION OF CARDIAC ACTION POTENTIAL

Introduction Selective permeability to various ions is an important characteristic of cell membranes, one that determines myriad cellular functions. In animal cells, ion permeability and the electrical potential generated thereof determines the activity of neurons, myocytes and the like. The electrical potential depends on the concentration of the ions inside and outside any given cell, the permeability of the cell membrane to the ions and the ion channels that are present on the surface of the cell. Cardiac cells also possess different ion channels on their surface. These determine the two types of electrical potentials, namely, resting membrane ...

Introduction

The simulated experiment of the practical is about the addition of agonists and antagonists on a guinea pig ileum and observing the effect of these agonists and antagonists on the ileum. This experiment is carried out with an aim to determine the effects of different concentrations of agonists and antagonists on the ileum of a guinea pig. In this experiment the type of data that are to be collected include the traces of acetycholine in the guinea pig ileum on addition of different concentrations of matropine. The expected values of the experiment are that the contraction of the ileum to change ...

Introduction

Bacteria are the very first life forms in the history of our planet. Since the beginning they were exposed to extreme changes of temperature, pressure, pH and nutrients; hence, to survive, they had to adapt themselves. One strategy of survival is to go into suspension or dormancy, by converting themselves into a seed form or spores. When conditions become normal, these spores germinate back to vegetative form. This property is also seen in pathogenic bacteria that infect higher animals such as humans. One such group of bacteria is from the Genus Bacillus.When exposed to stress, these bacteria go into dormancy ...

The two texts used for our comparative analysis are “Piggybook” by Anthony Browne and “Guinea Pigs”. Both texts are extremely different in terms of their genre, language, content and grammar. Piggybook is a fictional text whereas Guinea Pigs is an information report and purely non-fictional.

Piggybook is a short fictional story about a family, their daily mundane routine and behaviour. There are four everyday human characters in it, a setting, a problem and a resolution. It has all the elements which are present in any fictional story.

The author Anthony Browne has used very simple descriptive language to describe the characters and events that are ...