Biology

 DNA evidence for blood test Index for the DNA sample of Group 1 From left to right- Reveilles blood sample (a) M. flash shirt(a) M. flash DNA  (b) Biker man shirt(c) Biker man DNA (c) Ladder (l) Reveille fur (a) Results 1. From the fingerprint test, it can be assumed that the culprit could be Maroon Flash. 2. The presumptive blood evidence indicates the presence of human blood on Reveilles fur collar,   the Biker mans shirt and Maroon Flashs shirt. 3. The DNA fingerprint results...

Which of the following is NOT a function of skeletal muscle body movement maintenance of posture respiration constriction of organs production of heat Which of the following is true Skeletal muscle is capable of spontaneous contraction. Smooth muscle is found in the walls of hollow organs. Cardiac muscle cells have multiple nuclei. Smooth muscle cells are long and cylindrical. There is a small amount of smooth muscle in the heart. Which type of muscle tissue has cells that branch skeletal muscle smooth...

Abstract This paper tackles in detail the mechanism of the dolphin sonar  the transmission, reception and signal interpretation process. It also discusses the nature of echolocation signals of dolphins that can whistle and of those which cannot. Moreover, the paper gives some insight on how different bat echolocation is from that of the dolphin, as well as the differences between the inner ear structures of humans and dolphins and its significance. Introduction It is said that even in the...

Earths biodiversity includes variety of organisms that made our world really colorful and blissful to live on. Among these rich biodiversity are the marine organisms living underwater. In order to know more about a particular marine organism-how they really look like and how they can be of great importance to our environment, I visited the Audubon Aquarium of the Americas in New Orleans, Louisiana. At the Aquarium, I am very amazed to the different sea creatures that were living and breathing as...

Introduction (Levetin, 1995)Fungi are eukaryotic organisms that belong to kingdom distant from plants and animals. Fungi include inconspicuous yeasts, moulds and mildews, as well as large mushrooms, puffballs and bracket fungi. Structurally fungi exist in single cells such as yeasts or thread like hyphae. Fungi normally reproduce through the formation of spores that may result from sexual and asexual reproduction. Sexual spores are result of genetic recombination and follow karyogamy where as asexual...

The desire to procreate is a basic human drive. DNA plays a role in making the urge for procreation universal. DNA is a molecule that carries genes in a tiny, winded staircase. It is responsible for issuing chemical instructions that make up the body. DNA has the ability to copy itself, in two ways. The first is cloning, in which exact replicas of DNA strands are created. This method is used by bacterium. The second and more advantageous method, sex, is used by majority of the organisms on this...

1.  Actin and myosin are directly involved in muscle contraction. They are some of the proteins that are necessary to maintain the structural integrity and function of the sarcomere. Actin is the most abundant protein in the typical eukaryotic cell. This protein is highly conserved, and forms a huge variety of structure in cells in concert with a huge numbers of actin binding proteins. Myosins are a large family of  Motor proteins motor proteins and are responsible for Actin actin-based...

Hypothyroidism is a deficiency of thyroid hormone. It can either be primary or secondary process. A condition whereby the thyroid glands produces insufficient or low amount of thyroid hormone is termed as primary process while the total lack of secretion of this hormone is known as secondary hypothyroidism (Bharaktiya, Orlander, Woodhouse  Bhalla, 2009 ). The latter condition is characterized by lack of thyrotropin (i.e. thyroid-stimulating hormone TSH) from the pituitary gland or thyrotropin-releasing...

A mans manhood has been considered his pride and joy for centuries. It is said that the one way to break a mans spirit is to make a mockery of his manhood, his penis size to be exact. One of the main reasons that men have become preoccupied with their penis size is the perception put into place by their female counterparts, many of whom believe that bigger is better. The preoccupation with penis size has become such a common topic that a number of myths to determine a mans penis size without actually...

Increased attention has been placed on lung cancer as the annual death rate from lung cancer continues to rise globally. Governments and health sectors around the world work side by side as they attempt to combat this serious problem. Recent findings indicate that tobacco smoke causes cells to mutate resulting in lung cancer. An article by Pleasance et al., which was published in the January 2010 issue of Nature, relates the use of massively parallel sequencing technology to sequence a small-cell...

The cardiovascular system includes the heart and blood vessels it is related to the respiratory system as the oxygen we breathe is delivered through our blood. In this experiment, we will understand fully the factors that affect breathing rate and how well our heart functions to supply properly the body with oxygen. Both systems are controlled by the central Nervous System specifically the brain. The first activity is to measure pulse rate or heart beat rate per minute. Record Next is to measure...

Abstract The sugar beet pathogen Beet Mild Yellows Virus was inoculated using the aphid Myzus persicae into the model plant, Arabidopsis thaliana. This produced two plants one which expressed possible resistance in the form of BMYV-ss-Sna-1 and the other, susceptibility BMYV-SS-Col-0. After crossing Col-0 and Sna-1 to create an F1, the offspring was self fertilised to create an F2 generation which exhibited a 31 ratio of susceptibility to resistance. The susceptibility locus, was investigated by...