bb x bb e. BB x bb 29. To determine whether an unknown black guinea pig is pure or hybrid black, it should be crossed with a. a white b. a hybrid black c. a hybrid white d. a pure black e. another unknown 30. Organisms that have two identical alleles for a particular trait are said to be a. hybrid b. homozygous c. heterozygous d. dominant 31. A pea plant heterozygous for height and seed color (TtYy) is crossed with a pea plant heterozygous for height but homozygous recessive for seed color (Ttyy). If 80 offspring are produced, how many are expected to be tall and have yellow seeds?
This has been demonstrated via the use of monozygotic twin studies, due to their identical genetic make up. They are observed for a concordance rate, for example, investigating the fact that if one is diagnosed with depression, whether the other twin is also diagnosed. Some disorders have low concordance rates, such as phobias, whereas some have high concordance rates, such as schizophrenia, which has been found to genetically pass down through 1st degree relatives. In addition to genetic inheritance, the biological approach states that genes can lead to abnormal biochemistry/ neuroanatomy, which is in regards to the development of our brains. The function of genes is to tell the body how to function and to determine the levels of hormones and neurotransmitters in the body.
I observed that the females in the F1 generation all had wild type phenotypes and the males in the ratio all had tan body phenotypes. There was a ratio of about 1 to 1 of female wild type flies to male flies with tan bodies. ENTER DATA: (cross between two F1 flies from the above cross—this will produce the F2 offspring) Phenotype Number Proportion Ratio Female: + 248 0.2518 1.046 Male: + 237 0.2406 1.000 Female: T 261 0.2650 1.101 Male: T 239 0.2426 1.008 Total 985 2. Question: Based on what you know about Mendelian genetics, did the F2 generation demonstrate the phenotypic ratio that you expected? If not, what phenotypic ratio was obtained with this cross, and why?
a. What are the parental genotypes? b. What F1 phenotypic and genotypic ratios are produced from this cross? (Show your Punnett Square) c. Diagram the F2 results.
This will be tested using a 2, 6 dichlorophenolindophenol (DCPIP) dye which is coloured in its oxidized form but when it is reduced it will become colourless. The reduction happens when the Krebs cycle produces reducing agents for the reduction to happen. This will help us identify and compare the rate at which these reducing agents are formed under the different condition (Carleton University. 2012). The objective of this lab is to extract mitochondria from an etiolated Mung bean seedling in order to study the metabolic functions of the mitochondria.
The Y chromosome has significantly less functioning genes than the X chromosome. When genes are carried on one sex chromosome without having a match, sex-linked traits are created. Since the Y chromosome has less functioning genes and men have one X and one Y chromosome, men are more likely to develop sex-linked traits than women, who have two X chromosomes. Summary of Personal and Class Genetic Traits Trait | Possible Phenotype | Sample Size (# of people tested) | Dominant # | Recessive # | Personal Phenotype | Possible Genotypes | Tongue Rolling | T or t | 7 | 6 | 1 | T | TTTt | Widow’s Peak | W or w | 8 | 1 | 7 | w | ww | Detatched Earlobes | E or e | 7 | 7 | 0 | E | EEEe | Thumb Crossing | C or c | 5 | 4 | 1 | C | CCCc | Mid-digit Hair | M or m | 4 | 1 | 3 | m | mm | Hitchhiker’s Thumb | H or h | 4 | 3 | 1 | h | hh | Handedness | R or r | 6 | 5 | 1 | R | RRRr | Toe Length | S or s | 4 | 3 | 1 | S | SSSs | Cheek Dimple | D or d | 8 | 4 | 4
In 2012 there were 100 million unmarried women vs 60 million married women, so their vote was the one which really made there difference, just as it did in 2008 with a 70 to 29 percent margin to Barack Obama This demonstrates how the two parties differing ideologies, candidates and actions while in government create a divide between the female vote. For example in 2008 single women were the hardest hit by the recession caused by Bush's government from 2004-2008 and therefore while 37% of unmarried women voted republican in 2004 most swing votes changed to Obama in 2008, reinforcing traditional voting patterns. The Ethnic vote has three key
In Duchenne muscular dystrophy (DMD) lack of the protein dystrophin causes muscles to deteriorate and break down, leading to progressive difficulty with walking and general mobility. DMD is the most frequently occurring and one of the most rapidly progressive of the childhood neuromuscular disorders. It affects approximately 1 in 3500 live male births throughout the world. DMD affects only boys (with extremely rare exceptions). Around 10 to 20 percent of female carriers of the DMD gene mutation experience some of the symptoms of muscular dystrophy and these women are known as ‘manifesting carriers’.
The Antibiotic Decrease Yeast Cells Francine Rodriguez Biology 1401 Lab section Department of Biology, The University of Texas-Pan American March 8, 2013 Abstract: The main focus in this experiment was to find out antibiotics affect yeast cell cultures in a controlled environment. We imagined we owned a business in which a part of the business is to grow yeast (Saccharomyces cerevesiae) to be distributed as dry yeast for bakeries and breweries. Profits depend rapid, economical production a large number of yeast cells. We had observed that there is apparent difference in the yield of yeast cell when it comes in contact of an antibiotic. It appeared that that antibiotic had decreased the number of yeast cells.
Mendel's Law of Segregation Mendel's Law of Segregation stated that the members of a pair of "homologous chromosomes segregate during meiosis and is distributed to different gametes." This prediction was divided into four main ideas. The first idea was that different versions of genes caused changes in the "inherited characters." The alleles would create different variations in inherited characters. The second idea was that for every character, an organism inherits two genes, one for each parent.