{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Genetics Case Study SBI3U.docx - Part 1 Human ABO Blood...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Part 1- Human ABO Blood Type 1. What is the human ABO blood group system? The human ABO blood group system is the different blood types humans can have. These types are determined by the carbohydrates that mark the surface of red blood cells. Examples of these are A positive and B negative. The positive and negative are determined by the amount of Rhesus in the individual. 2. What types of biochemicals are surface markers on red blood cells? The biochemical surface markers on red blood cells are carbohydrates and rhesus, and these determine what the blood type is, and if it is positive or negative. 3. How many blood phenotypes are there in the ABO blood group system? There are currently four different blood phenotypes in the ABO blood group system, and they are A, B, AB, and O. If the red blood cells have carbohydrate A on the surface, this person has type A blood. If B is on the surface, they have type B blood. Type AB blood occurs when both A and B carbohydrates are present on the surface, and O occurs when there is neither carbohydrate located on the red blood cells. Part 2- Genetic Inheritance 1. What is genetic inheritance? Genetic inheritance is the genes that you inherit from your parents. If your parents both had the same blood type, it would be highly likely that you would also inherit the same blood type from them, and it will always be a combination of their genes that you end up with. 2. What is genetic variation? Genetic variation is the variation of the genes that you inherit. Nobody has the exact same genes in their body, and it is highly unlikely that an entire family will all have the exact same traits or characteristics because of the variation in how the genes combine. Genes come from both parents, not just one, and therefore will be a mix in their offspring. 3. Among the three alleles of human ABO blood group, which is/are dominant, which is/are recessive? Among the three alleles of human ABO blood group, A and B are dominant while O is recessive. Therefore, when classifying humans by blood type, we cannot just label them homozygous dominant because they could have either type A, B, or AB blood. As well, only those with type O blood would be labelled as homozygous recessive.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern